It is like CSS, sure they are all games and in the end, they are all one big waste of time...
but the scale of WoW is too much, hours go by and it seems like minutes... days go by and they seem like hours lol.... the requirement for WoW (raiding shit, etc) is a lot longer than being able to jump in a CSS server and play for a bit... if you want to raid or something, say goodbye to the next 5 hours....