A lot of games are releasing DLC (downloadable content) these days, and it's an "all of a sudden" thing, as games usually didn't do this before. They just recently started doing it. What happened to expansion packs? What happened to free updates?
I know consoles have done this a for while, but it seems to be growing rapidly on PCs (Sins of a Solar Empire, Fallout 3). Makes me wonder. Anyone know why or have a theory?