When i can find one in my country.

Uncharted or God of War

If I didn't already have one, Final Fantasy XV

When there are games I'm anxious for, so not for the foreseeable future.

Actually, FF15 does look cool (surprising to me, since I'm not normally a FF fan) and I'll certainly give Uncharted 4 a look, but with no new Bioshock game coming this gen it's probably going to take some unexpected surprises from the industry for me to want a PS4.

I think for me it will be when there is a good list of discounted/pre-owned games at low prices, the firmware has been updated so the blu-ray player and media features work well and also ideally the bring in the ps1 and ps2 compatibility Sony has mentioned.

Ultimately it will be dictated by price and perhaps a bundle.

At the moment I still have a huge amount of ps3, 360, PC and wii u games to play through so the PS4 needs to have games that will go to the top of that games list.

I expect to buy a ps4 late this year, early next realistically.

I got one day 1! Convert, peasants, and feel its awesome power.

2020

I don't think I'll ever get a PS4, so I voted for The Last Guardian.

Kingdom Hearts 3 will make me finally branch out from being a Nintendo-only gamer. At least, that's the plan right now. I suppose if Nintendo surprises me with a bunch of game announcements between now and KH3's release that I just HAVE to play, that could change things. But for now, Zelda Wii U, Monolith Soft's "X", Mario Kart 8, Super Smash Bros., Yarn Yoshi, and possibly SMT X FE just aren't quite enough to make me feel like I'll be satisfied solely with Wii U long term. Of course, it doesn't help that other than Kirby/Mario Golf in May and Smash Bros. later on, 3DS has almost NO known games coming. Hopefully Nintendo reveals a decent 3DS slate for the 2nd half of the year and into 2015 at E3, if not sooner.

h-hour, or sometime around christmas when a good bundle goes on sale.