I run Black Temple and SunWell on every toon, I DE greens, blues, and purples, and then send them too my enchanter to make scrolls. I then send all the netherweave cloth too my tailor and make netherweave bags. Its a lot better if you have enchanting on all your toons so that your able to DE all boss loot too. I've also discovered that crafting any early MoP item rewards the chance of giving a blue, which is bought by twinks in the 80-84 bracket, I've seen some twink gear sell for as much as 6000g. I have 10 characters on one realm that I do this with and it doesn't require HB.