Slimline came out in 2004, Xbox in 2001. I don't think it was so much a reaction to the Xbox.
I wasn't thinking about the slimline - from day one Sony were making the PS3 cheaper to manufacture. They shrunk chips, combined chips, put the DVD player software onboard etc etc. All this was going on long, long before the slimline. They could drop to mass market prices while MS had to lose billions to keep up.
Perhaps Sony would have dropped prices as aggressively even without competition just to drive the userbase up (I doubt it), but the point is the PS2 allowed them to do this, while the PS3 does not.
And I was referring to the idea that 'expensive and complicated' will always fail, as it did for the Saturn. The Saturn failed for many more reasons. Saying it and the PS3 are in the same situation is inaccurate.
If an expensive console in a multi-console market wants to remain expensive it needs to have something unique to offer, something that's reflected in the games it offers. Even then it'll be relatively niche, like the Neo Geo.
But it's stupid to suggest that they're out of the race, much less to say that they should go 3rd party or just drop out entirely.
They're pretty much out of the race this generation, at least if you're judging the race on market share and profits. No reason they can't be back to profitability and a nice chunk of the market next gen though. Sony could return with a cheap to manufacture device by as early as 2010 that would have a temporary lead in graphics (like the PS2 had), could inherit Home, full backwards compatibility and also be a top of the line BluRay player. Bung in a "me-too" motion controller and there's a good chance of success (maybe even without one).
A bit like the GC->Wii transition (but with new Nvidia GPU on smaller, faster bus). It's something I'm sure Sony are considering.
Sony's DOOOOOOOM might even be true in the future, but the facts we know don't lead up to that conclusion.
Sony's not doomed, they just got a slap in the face from the reality of the console market, a bit like MS and Sega did.