Why is it so hard to understand!

The monthly fee you pay covers:
-Rent on the account you pay. (This covers standard access to the game, and any features/content considered as such.)
-Minor/Major patches and updates
-Fixes
-Customer support

What it doesn't cover:
-Expansion packs (3.0, 4.0, exc)
-Extra's not considered as standard
-Special actions and services
-Any article that is not a part of the box