I sincerely doubt MS is willing to eat another billion this gen, I read a WSJ article a while back, and a head of the Xbox program (maybe Allard, can't remember) specifically noted that if Xbox doesn't turn a profit, his head is on the block and that he would be fired. These guys as far as I know are under pretty firm orders to stop the bleeding this go 'round. Their best chance to go for a higher price point do this is in the first six months when they own the market. I wouldn't be too shocked to see $399 but $359.99 to me seems about right, catchy, and more realistic out of the gate. And yes, reasonable given inflation and perceived value increases. I think my dad paid about $250-300 bucks for Atari in 1981. Suffice it to say, I think 360 has Atari beat. (Then again, I did love Missile Command).
When PS3 comes out I would expect the price of Xbox to then come down to $299 or less. M$ would still probably be taking a modest loss early on to ensure a large installed base, but I think they will do everything they can to minimize the bleeding ($375 cost sounds about right to me, maybe a little on the low side but not too far off). I don't think you will see M$ falling on their sword for the sake of gaining market share for very long. In all likelihood they'd be more happy with a 25-35% share and in the black than a 45-55% share and another few billion down a hole and have to explain to analysts on their quarterly conference call why they keep throwing shareholders' money down this xbox pit.
I agree with jvd that out of the gate the market can easily bear 350+ and I fully expect them to charge that at or near that price. Why wouldn't they? The relevant competition this fall is PS2 and Gamecube and Xbox, totally different consoles, and any serious gamer out there already owns one already if they want one, in other words, for six-eight glorious months they have a monopoly, I suggest that M$ should enjoy it while it lasts. 5 million units at 350 is probably pretty realistic. I don't expect them to do something stupid and rake people over the coals with a $499 price tag, but $359 seems eminently reasonable to me. $400 is doable too, but strikes me as unlikely.
When PS3 is out, the situation is completely different. Sony may have a bigger problem on its hands. I think Sony would very much like to charge $500 a pop, but with MS out there almost certainly under $400, it would be very tough to do. On PS3 release, I expect PS3 to come out at approx 350-400 at launch to nail the early adopters (emphasizing all that extra power), and drop down to 299 and go head to head with xbox before the holidays in 2006. This may force MS into further cuts, but as noted above, I expect both companies to try to maintain the highest prices as long as possible.
I don't, however, expect PS3's power advantage, real or perceived, giving Sony much pricing power in a head to head with 360. I would be surprised if Sony can command a significant premium over 360 for any significant period of time irrespective of power, exclusives or savvy marketing unless they asbolutely blow 360 away--as far as I can tell, that is not going to happen, even though I think PS3 is one powerful machine.
If any company is in trouble here, I suspect it's Sony-IMHO they are pretty concerned about the costs of this box, hence the ongoing HDD debate. Sony isn't interested in throwing 1 billion down a hole either, and if they have a $400-450 to produce box priced at $299, they are going to be in a world of hurt. I'm not sure where PS3 is coming out on the cost side, but based on xbdestroya's thread, I think the cost is going to be at a fairly significant premium to 360. Yes, software can make up for some losses, but a billion dollar hole is pretty hard to recoup with increased royalties on software. Yes, $59.00 is likely, but I also agree that price is going to hold up for major titles only, and not for very long either, especially as quality titles continue to roll out over time.
For all of Sony's Karate bravado, if in a head to head with 360 they come at the market with a $100 premium over 360 they may be in for a rude awakening. I'll gladly pay it, since I'm an idiot and have the cash, but many Dad's just looking for something under the tree will not, assuming 1) M$ convinces them that 360 is a proven system with 2) an adequate well supported software library that 3) won't suddenly die off like Dreamcast (which I think they have already succeeded at), IMHO Joe Dad is more likely to go for the 360. Sony has to be prepared to match M$ on price pretty early on, or they are probably going to bleed cash for quite a long while. That is not going to make Wall Street very happy, since they are already marching down the street with torches and pitch forks wondering what the hell Sony is doing to turnaround their low margin electronics businesses. M$ at least doesn't have THAT to worry about, relatively speaking (since I noted above, the xbox team is in the hot seat).
So here is my purely speculative guesstimate:
Fall 2005
XBox 359.99
Spring 2006 Xbox $359.99
(Launch of PS3) PS3 $449.99
First sets of shipments sell out, PS3 drops to $399.99 (2-3 months post-release)
early Fall 2006 PS3 $349.99
early Fall 2006 Xbox $299.00
Christmas Day 2006 both systems: $299.00
Thereafter, M$ cuts before Sony from time to time and Sony matches.
Nintendo for what it's worth is priced more cheaply than both systems at all times, by at least $50.