Its all about what everyone likes. Personally, I haven't bought a PS4 yet cause there is nothing interesting to play. I usually buy the sony console for the multiplatform games that do not come out for the Nintendo console (mostly japanese games, like Naruto and Tales of).
Tales of Zestiria and the next Naruto game are coming out for PS3, so there is even less reason for me to buy a PS4. I think I will most likely buy one by the time FF XV comes out, if it is a good game, I have my hopes up for that one.
On the other hand, I'm extremelly excited for Super Smash Bros. for Wii U and to hear details about the new Zelda during E3 this year. I'm also interested in Mario Kart 8.