I hate the way the games industry is going with DLC, and it is something which affects all console owners. Here at least there is one issue we can all unite against. What really pisses me off about this sort of thing is that they have the DLC already completed before the release of the game in many cases. I've even heard of games that already have the 'DLC' on the disc and the purchase is for an unlock.
If a game proves popular, I don't mind a company developing more maps to extend the lifetime of the game and charge for that extra content. What I do not like is games developed with DLC already in mind.