Yeah, I see the stashes on this board and gape at them too. I could never justify that much fabric in my life :) :)
I don't bother anymore with FQs because of inconsistency, EXCEPT at my LQS. They are always accurate and often times give even more. Everywhere else I buy, I buy yardage just to insure I have even FQs. I've never gotten short-changed online either, but places like JoAnn are almost always inconsistent. They can't use rotary cutters there and I am sure that is one reason among many.