Trying to hard cap expertise means that I'm almost always better off with DPS gear vs. tanking gear. For my first two VP purchases I took both DPS neck and ring from Klaxxi & Golden Lotus. Moving into our regular 10 man, it's going to be a hard sell that I should be rolling on DPS gear even though DPS gear seems to be the optimal choice this early in the expansion.
I understand why Blizzard wanted to make hit and expertise important to tanks, but have they made it too important? It seems dodge and parry are stats that I always reforge out of.