Yes they matter to me.

Usually not much at all. If I like the game I'll try to get alot of the achievements or aim for all [Burnout]. If I don't like the game I won't even bother trying.... [CoD:WaW and GTA4]

Iam 45 and own all three and play mostly 360 games and prefer achievements to trophies. as for not giving an f and being 28 and not playing alot why are you here again????

Not at first - but after I hit 10,000, I think I have become a gamer score whore.

I have like 1 or 2 achievements/trophies on the PS3.

Can't say I've ever gone out of my way to unlock either a trophy nor achievements (WoW and 360 included).

RPG's are typically the only games I fully complete and having trophies or achievements don't add to the fun for me, at all.

one of the most pointless "innovations" of the last few years.. i mean who cares if you beat gta 4 or had 3000 frags in cod 4? its like "hey i wasted years of my life on video games i want a fucking medal"

its insane that people would actually reconsider buying a game because it has no trophies

They are sort of fun in the sense that they essentially become a game on top of the game. Sort of a metagame.