I still play it occasionally and still have alot of fun with it (TBOGT in particular). I doubt I'll play it again anytime soon after GTA 5 is out, but GTA 4 will always have a special place in my heart.
Honestly never had more satisfaction playing any GTA story more than GTA IV. Beat it over 10 times and am still not at all bored of it. For sure will play it after V comes out, along with every other GTA.
Unless GTA V is a huge failure even worse then the let down of GTA IV then it's doubtful, GTA:VC and GTA:SA are games I still go back to because of the quality and the great gameplay. If GTA V can be 75% as good as GTA:SA I doubt I will touch GTA IV again for a long time since I don't like it much but for the past few years its been the only this gen GTA, and the only GTA that you could play with friends online. GTA IV was no where near as fun as GTA:VC or GTA:SA, the DLC for GTA IV was a big help but Liberty City is still a **** hole.
What this guy said.
"You don't need a knife to kill a game maker. Just call it crap." - Piros