The evolutionary design of Arena gear

What many players who don't like the sets seem to miss on is that this is something entirely new in the game. Blizzard has always done recolored versions of armor, but this is the first time by my reckoning that they have done evolutionary tier gear. [EDIT: This isn't entirely true. Reader Suzaku pointed out that the leather armor from Level 60 PvP sets evolved. My bad on missing out on that.]