A few things I do want to point out
- The PS3 is driven by price cuts, not by software sales.
- Software sales have been pretty bad. The best selling PS3 game was MGS4 at ~4 million. The 360 has Halo 3 at ~10 million and the Wii has multiple titles over 10 million. The PS3 has no killer app, and it doesn't look to get one ever.
- The latest figure have Sony losing $18 on each PS3 sold. If it was at least $18 thoughout the system's lifecycle, it would have lost $583,560,000. Now, while not exact, this is still a lot of money to lose in 3 to 4 years. And this is just on a videogame console.
- Software is lacking on both the PS3 and the 360. Titles like Bayonette, Dante's Inferno and Dark Void have done poorly and a lot of the titles coming up (save FF13) have little potential to push the system or even make good sales numbers.
Unless Arc takes off (which is doubtful) the PS3 is pretty much over. There is no way the company can recoupe their loses on the system and it has little room for growth. All sales boost for the system are temporary and there isn't much hope of getting it to go anywhere. I doubt the PS3 will stay on the shelves for 10 years.