I'm curious, how many of your raid leaders insist that you clear Flex and/or LFR each week for extra gear to use in normal mode?
My guild makes Flex a requirement, and organizes weekly runs of it on top of our 3 day a week normal schedule. LFR is also encouraged but is not mandatory. Because of this I'm already getting sick of Siege of Orgrimmar and we're only a couple of weeks in to the patch...