I'll begrudgingly admit that achievements can be fun - I particularly like the new-ish achievement system when it comes to Android games. That said... it's highly doubtful anyone considers achievements when making a purchase on a game or system.
As many others stated Nintendo and third parties have experimented with stamps and various achievement posts on Mii-verse (i.e. Batman Arkham Origins, Deus Ex). I actually think this method is more affective form of achievement - you're automatically sharing your cool deeds out to the world as it happens for people to comment on and such. It does need to have wider implementation though.
run away!