As I said, as a differentiation between your platform and the others. If two consoles offer exactly the same libraries, choice comes down to other factors. If one has exclusive games you want to play, you're far more likely to buy that console. Yes, earning loads of cash is of course a big plus! But 1st party offers the chance to create titles to appeal to a particular market sector and attract them to your box, which they may otherwise ignore. If you leave that to 3rd parties, you have to hope they'll gamble on a 'niche title' and if they go multiplatform, you're no better off than the competition once again and can't differentiate by library.
That's only one way to use 1st parties though. The other way is to take the library as it is, expecting the cross-platform situation to be fairly even as makes no difference, with 3rd parties providing the 'something for everyone' library for your box, and use the first parties just to make shed-loads of cash with major mainstream games. This looks to be MS's strategy. My point was only that that isn't the only use of 1st parties.
The advantage with 1st party devs is a freedom to create and experiment leading to original ideas, and expertise in the hardware. The 2nd party idea would require someone in the console company to have an idea and commission it - 'let's create this niche title'. The first party method gives developers the freedom to experiment without having to worry about finding a publisher, a worry that will constrict ideas onto stuff they think publishers will want. This allows such titles as ICO or EyeToy to be created, where perhaps otherwise the developer would have dropped the ideas fearing no-one would produce them. Supporting developers as an ongoing concern should yield more variety and originality. Unless you have a think-tank of creatives at Head Office brainstorming and requesting titles to be produced, 3rd party exclusives are most likely to be a case of the console company shopping around seeing what's being made and buying anything that catches their eye.
The other aspect is hardware expertise. A developer focussed on one platform can accumulate expertise and share ideas, increasing results, decreasing costs over time, reusing engines where appropriate. A 3rd party will take the commissioned job with their current abilities and experience which are invariably less than ideal because they've had to focus across multiple platforms and haven't concentrated on best practises for the one platform.
I don't disagree with you, except perhaps I don't think a 1st party developer is solely required to turn a profit to be worth something. There are two strategies here to acquiring content for the platforms, with MS going a different route to the other two. Neither strategy is fundamentally flawed as to be not worth considering.
Edit : I'll add that one thing wrong with your scenario is it considers only one title with different success. It's not like the choice is between A and B, but a choice to create a game and see what happens with it. When funding several games across multiple developers, of which some might sell 750k, some 1 million, some <200k, and 1 five million, the picture becomes more complicated.
Although of course if the console company is publishing a 3rd party game, they'll be making more than 33% vs. 80%, as they'll be getting the license and publisher cuts, the same as if the game was created in house. The only difference I think would be a first-party investment on tools and hardware etc. would be money building up the 1st party assets, whereas funding spent on a 3rd party developer wouldn't be buying assets for the console company. That is, if £1 million of Sony's investment with Guerilla Games was buying hardware and tools to make KZ2, and £1 million of MS's investment in Epic to create Gears 2 was spent on the same, after the games were finished, Sony would be £1 million in assets up on before the games' creation, whereas MS's £1 million investment would belong to Epic, losing MS that money.
I keep hearing that MS has had a ton of success with 3rd party endeavors, but is the ratio so much better than for first-party? Are we talking about non-exclusives, 3rd-party published games like CoD4, GH3? MS' biggest exclusive hit was Halo 3, and at the time Bungie was internal. Okay, Gears and Mass Effect were successes, while maybe Kameo and Forza weren't quite so much. But Lost Odyssey, PGR4, Ninja Gaiden 2, none of these were great successes either. Sony itself hasn't had great successes with either model, but on the other hand, again, Nintendo is strongly first-party and for them it pays off!
Can someone point out this pattern that makes it clear that 3rd-party development is the way to go?
I keep hearing that MS has had a ton of success with 3rd party endeavors, but is the ratio so much better than for first-party? Are we talking about non-exclusives, 3rd-party published games like CoD4, GH3? MS' biggest exclusive hit was Halo 3, and at the time Bungie was internal. Okay, Gears and Mass Effect were successes, while maybe Kameo and Forza weren't quite so much. But Lost Odyssey, PGR4, Ninja Gaiden 2, none of these were great successes either. Sony itself hasn't had great successes with either model, but on the other hand, again, Nintendo is strongly first-party and for them it pays off!
Can someone point out this pattern that makes it clear that 3rd-party development is the way to go?
If you have a console and its dominated by third party sales because outside of one or two first party titles your offerings have been lacking but represent a fortune spent on buying up those behind your first party lineup, wouldn't you look for an alternative strategy to bolster your publishing arm.
All MS is doing is trying to bolster its own publishing arm without investing 100s of millions of dollars in buying up companies. A strategy that they have used in the past but outside of buying Bungie never proved to be the most cost effective strategy. Its funny how MS's biggest franchise is one of its cheapest investment.
We don't know if MS's current strategy is long term or just being used as a transitional tool. MS might be using partnerships to bolster its MGS offering and IP properties while trying to more patient and smarter on how it acquires and setup its first party dev houses.
Yes, Nintendo has a strong first party division but its easier to become the #1 console manufacter than its is to create a publishing arm that can push out more titles and sales to your userbase at a rate that rivals EA and Activision who service the whole market.