See the poll (which has vanished...) to get some ideas. Personally I can't really decide which is worst, I think all of those together are slowly killing gaming for me.
EDIT: The poll was:
1. downloadable content
2. digital rights management
3. turn towards digital distribution
4. Obsession of companes with multiplayer
EDIT: The poll was:
1. downloadable content
2. digital rights management
3. turn towards digital distribution
4. Obsession of companes with multiplayer