yes i agree with all your reasoning about it could easily be cheaper. But still, the 900 is the buyer price. Z1's selling price of 725 is their cost (including importing) and profit. The $180x50 (9k) is solely on the buyers, not part of Z1's estimated investment. Aside from that, it does make perfect sense for TwinZ to simply produce and ship...probably have to be done in certain quantities as he does not run a large business that can front the cost of a large supply