Probably more because Mc sells as a brand because of reputation among non-audiophiles. They also focus on HT a lot, which is where most dealers are earning the cash.
I find little correlation between quality and "stocking" of product. Most dealers don't like having a lot of inventory anyways.
My BAT dealer has 5 or 6 pieces on display/rotation, and it isn't hard to order product (just placed an order for 75SE and it will be there in less than 14 days, fresh and new)