I have such a huge backlog of games that it isn't a problem at all for me to just wait for the GOTY/Ultimate/Complete or whatever they call it edition of a game comes out. I kinda feel sorry for people who spend $60 to get a game on release day, and then probably spend another $60 on the DLC that comes out for it over time. That's like $120 on one game in some cases, which is ridiculous... but often times if you are willing to wait long enough you can get the game plus all its DLC on one single disc for $20 or so.
In fact, recently Amazon had Batman Arkham Asylum GOTY with all the dlc on sale for only $14.99 which is crazy. I'd hate to be someone who spent $60 + the cost of DLC and then see that deal. I understand Arkham City is out now and Arkham Asylum is an old game relatively speaking, but that doesn't mean it sucks or is obsolete by any means. That's why I'm just going to wait on Arkham City too. Not only wait for the GOTY edition, but also wait for the GOTY edition to be dirt cheap.