The two major reasons why my friends and I purchased Xbox 360s first were because it came out first, and it was at a much more affordable price compared to the PS3 when it launched. I (as well as many of my friends) eventually picked up a PS3 as well, because frankly, there are just too many good exclusives out for the PS3 to pass up. Honestly, if you're a core gamer and don't have all three systems by now, you're missing out on a tremendous amount of games this generation.