You do realize how console manufacturers typically make back their money, right? You must sale games and right now the absolute number of game sales isn't high enough for game developers of expensive (read: All modern games) games to make back their own investments. The other features of the PS3 are really not that important besides is Blu Ray playback which will only be good for so long (Blu Ray dies or Blu Ray players become very cheap). It's media center like functionality (which is highly limited) is also not going to sell it for long, especially considering its features are not much better than the competition. So I have no clue what you're trying to get at. It can't play the third role if it is that far behind the Xbox 360. Even then, it MUST sale games or it never become profitable.
Yes, I understand console manufacturers make a licensing fee on the games sold. So you can't say, it's selling software good enough and saying it will fail. Of course, I'm assuming they're not killing themselves by dumping these consoles way way below cogs.
I'm pretty sure Sony thought about bluray player and media center functionality. Yes, bluray will come down in price...but so will cost of PS3. And it's a small price to pay up front to win in the video market.
As for the media center functionality...yes, their plan is a mess right now. No clear direction. But I'm sure it's tied to Home and PSN somehow...