Yeah, a fair price for decent DLC like maps and expansions is all right by me too. Though I thought the BF3 DLC asking price was too much at the time (I eventually got it cheap but no one's flippin' well playing it now).
But, GTA V's Online's coming for you lucky so and so's who've got it on PS3 and you'll maybe be expected to pay with real money for things like guns and ammo now. I dunno how it'll work exactly but imagine someone runs you over and kills you then steals all your (real) money?!!! Now, that would be a whole new level of game-quit rage wouldn't it?