I always buy the BoE set, cause otherwise I don't have any fun, and I just shut the game off. Especially when I'm on alts and it's late into the expansion.

Flying is more important now with HGWT removed, but I just leveled a team of 5 mages to 85, with 150% flying and it wasn't bad at all. I'd much rather have fun in BGs personally than fly faster. I have too many toons to be spending 5k gold on each one to fly fast... I'd go broke!