PS2, PS3, or PS4. which to buy?

With the PS2, most of it's games can be found used or very cheap, plus the console itself the cheapest of all three.

The PS3 is slightly more expensive, but it has some amazing titles (not to say the PS2 didn't have some of its own) plus it still has games coming out for it, but only the earliest models play PS2 discs (80GB or less)

Luckily the PS Store has the classics section where some but not all PS2 & 1 games can be bought and downloaded.

The PS4 won't play PS2 OR PS3 discs but Sony said they would let you stream PS1,2,3 & 4 games in time. That's good because you can play your favourite classics but still have next gen content to look forward to.

And real, even if you've played a game, you will play it again and again if you really enjoyed it.

For example I beat Grand Theft Auto IV 3 times plus DLC yet I still play it, same thing with Sonic Generations which I've already beaten twice. You don't just stop once the story's finished, unless it's a game that sucks.

CECHBxx (Hardware based backwards compatibility)

CECHAxx (Hardware based backwards compatibility)

CECHExx (Software based backwards compatibility)

Though all of the PS3 models above are discontinued, so you'll have to buy them used from some moron who likes sticking cheese in the disc tray.

And I've reported the other [useless] answer~