Not at this point, no. If it had a decent library of games, I'd easily pay $500, or even the original $600 for it. If it had $600 worth of good games, it wouldn't be a rip off.
That's also why I'm not really pissed that I don't play my Wii that often - I buy a game for it every 4 or 5 months, play the hell out of it, then beat it. Sure the library isn't great (still better than PS3 at this point), but I only paid $250 for it, and I can easily see myself getting $250 worth of entertainment value out of it.
At this point, I can't say that for PS3. I'm not into RPG's at all (FFXIII), I'm not a MGS fan, I'm not interested in an overworld (Home, though it is pretty sweet - just not my thing) and Virtua Fighter, Devil May Cry, GTAIV, and many others have gone Multi-Platform. I just see no reason to get a PS3, save maybe a slight interest in Motorstorm and Little Big Planet.
As of now, I'd buy a PS3 for ~$200-$250, because I think that's how much entertainment value I can squeeze out of it in the long run. Who knows, maybe Sony will announce tons of games I have to have at E3...?