With the accessibility of epics from badges and Arenas, the average level 70 character is now a far cry from a freshly-minted 70. The gear bar has certainly been raised among level 70s, compared to pre-BC 60s. This has led some to proclaim that "epics are the new blue."
Despite the proliferation of "welfare epics", there are still level 70 characters who are in their leveling blues and greens. They typically belong to alt-o-holics or really casual players who simply do not invest enough time to gear them up in pace with the general populace.
Some alt-o-holics even put their characters, mains or otherwise, into cold storage as soon as they ding 70 and move on to leveling a new alt. No Arenas, no heroics and certainly no raids for them. There's nothing wrong with avoiding the "endgame" really, but the gear level of their toons will be unavoidably lower than someone who chooses to focus on just one or two characters. Of course, there are alt-o-holics who do a good job of gearing up multiple 70s; if you're one of them, more power to you.
If Blizzard tunes the difficulty of the inital WotLK game to the "average" 70 with epics, will undergeared 70s and alt-o-holics be left in the dust?