This is what I hope does happen.
I'm not trying to impose that piracy is needed, but many years down the line, these DLC will no longer be available. On the Xbox, even though the service is no longer around, many can still download the extra content, albeit on a modded console. Still, it's something that can still be enjoyed many years from now. Same goes for the Wii.
I've yet to see anything of the like for both the Xbox 360 and Playstation 3, though I will admit I don't follow the modding scene for any of the two.
DLC does piss me off a bit. In a way, it's great to have a game expanded with new stuff that was not originally planned for the console, like new levels and such. But when the DLC is actually on the disc itself, only unlockable with a DLC/code...now this pisses me off. The content is RIGHT THERE, yet we need to pay X amount for something we already paid for that is on the disc?
Also, DLC should only cost a few bucks, not an asinine amount of money. $15 for a "new episode"? No thanks.