The quality of Naughty Dog games would plummet if they weren't a Sony developer. It's no coincidence that the Sony studio happens to always make the best use of the PS3's hardware.
Also, piggus, where did you hear that a price drop is expected soon? I actually heard the opposite on twitter in the last week or so. A Sony spokesperson said that the PS3 was at a good price point and they have no intention to change it anytime soon. I'd find a link, but there'd be like 10,000 tweets over the top of the one i read by now