Quote Originally Posted by TitaniaZero View Post
WoW. Every Expac.
Two major differences here. Firstly, in WoW the cap is a hard cap. You literally don't even unlock the ability to level past your cap without the expansion. Secondly, in WoW, once the level cap is 'earned' by getting the expansion, you can still earn experience in earlier areas. It's not like all of your new levels had to be earned in expansion areas only.