i'm in a top 2000 guild and i can say for a fact that none of the raiders are raiding LFR anymore because there is no use for it everyone has better gear and all their sigils, it was only mandatory for us when we needed gear and sigils and doing a random dungeon/scenario everyday is so much better then the little valor you get. So next tier if neither of us has any gear needed (if its lower then normal/heroic) then why the hell would we run it???