Leveling faster makes you win... what, exactly? XP boosts, Rep boosts, all fair game. Gear at raiding/top PvP (or even higher) level is pay to win.
There was a thread on the WoW forums recently about making WoW F2P. One of the responses was something like "I would quit if WoW went F2P and P2W and you could buy things like XP boosts and such", and a lot of people quoted this guy and agreed with him.
So we get level 600 epic cloaks that we can upgrade to 608, then we get to "imbue" our cloaks with legendary power that brings them back down to 600 and can no longer be upgraded? Sounds quite legendary, especially with the crap proc for casters.