Actually, I too migrated up (and hunted down a 60 GB for maximum compatibility no less), BUT not everyone will be in similar situations nor have similar tastes. After all, BC was important to me, and several of the PS2 games I have are buggy with the 80 GB (as per the Sony website).
Were I to be on the market for either the 360 elite or the 40 GB PS3... well, it would be a close call because, either way, my PS2 library is unplayable on the new system and the 360 has a more mature (developed) library. THAT is what I meant.
Sony obviously doesn't consider BC as critical as it once did, though, and to be honest had I not found a 60 GB model, I would not own a PS3 now because I would have waited until the 80 GB model hit $349 to buy.
Plus, I still contend that the 360's lead in North America will make it a formitable seller of both DMC4 and GTA4.








