The only PS3 game I can think of offhand coming close to the first week Halo 3 WW sales is Gran Turismo 5 if its released in a year or so (when the PS3 user base is higher). That is mainly because A) even the demo has sold a ton (and thats not including downloaded copies) and B) it has an actual worldwide following so it will get sales in Japan Halo never did plus a bunch more sales in Europe then Halo 3 did.
I don't get the Halo 3 hype really, I mean Halo 1 was great for its time but by the time 3 has rolled around its just kind of a middling (ok maybe above average) shooter. I was so bored with the single player by the halfway point I went back to playing other things and returned the rental early. It was pretty good online but I can think of 5 FPS games I'd rather play online then Halo (COD4, Team Fortress 2, UT3, Warhawk, Gears of War PC). It was certainly quite far from the second (or I guess in this case the third) coming.
PSN ID: ChosenOne feel free to add me







