I would guess on lenses / camera bodys probably thin but all the other crap
I remember asking a Tekserve rep if they could match B&H on the price of a monitor and they said it was significantly lower than they could get it wholesale. I think they negotiate exclusive volume discounts and sell at a small margin to undercut everyone and take all the market share.
never heard of them but yeah even if they deal with the same distributor there are usually better rates for major volume players
They used to be a pretty major player here but not anymore. I think the company still exists though.