Well for me, my brother already has a Wii and I was starting to get bored with it after getting through SMG, MP3 and Zelda. So it was either the 360 or the PS3, and the PS3 won out.
Out of all current gen systems it has the best value as a hardware product. Blu-ray, built in wi-fi, free online play, free charger...and a far lower risk of defects than the 360.
Some of the major series I enjoy most are here, atleast multiplatform, such as MGS4, FF13, RE5 etc so there was no way I could just rely on the Wii anymore after moving on from the PS2. Last gen I owned a PS2 and GC, and there's no way in hell I would have enjoyed just having the GC and the Wii was starting to feel as if it may head down that same route in terms of third party support.
My brother eventually went on to purchase a 360 so all is well in terms of access to great games this generation.
Playing: InFamous, Super Robot Taisen OG Saga, Modern Warfare 2
