I made a thread a few days ago about preparing gear for the Shadow Lairs, but I have to ask:
Boss armors aside, are the Shadow Lairs rewarding enough to give the player a sense of real profit over the cost of the Shadow Key? Because if they aren't, I'm just going to buy all the boss mats from AH and do a single Shadow Lair run, craft all the boss armor, then never go back.
Sadly, no. Just grab the gear and don't go back unless you enjoy them. Three of them were hit pretty hard with the nerf bat. You could sell the SL gear/mat for profit if you split the key cost between 4 people.