Before I get into it, I'm just going to say that I have nothing against DLCs. Actually, I think that the idea behind them is wonderful. Major bug slipped past playtesting? Now it can be fixed with minimum fuss! Reviews say the main issue with your game is not enough of 'x'? Now you can add 'x'!
I'm not even saying that DLCs should be free. Developers work hard on their games, but they do have fairly strict deadlines. Maybe they couldn't find the time to shove something into the gold build of the game? Well, then they can use the DLC system to get it out there.
No, my issue isn't with Downlodable Content. It's with Unlockable Content, or as I shall refer to them from now on, ULC's. If you look in the Playstation Network (Assuming. Don't have a PS3) or Xbox Live Marketplace and you see a DLC that is about 300kb in size, that would be a 'key' to unlock content that is already on the disk that you paid full price for.
Many people just say 'Well if you don't like it, then don't buy it.' That doesn't stop it from being major douchebaggery, and some people will still fork over the $5 or however much it costs to get at the ULC. If noone buys the ULC, maybe some gaming companies *CoughEAcough* will get the hint and actually start letting you have everything on the disk that you've already paid them for.
In otherwords, Believe in your force and head into the Garden of Madness. [sub]Shameless No More Heroes reference. Don't hurt me.[/sub]