> What scam are you speaking of ? The return window ?

Your calculation seems to have depended on "Buy this hardware with the explicit intention of returning it" process, which is a scam. If you buy hardware you do so with the intent of keeping it, otherwise you find renters, if you don't like scams.

So if you don't plan to return it, wouldn't the cost at minimum be the cost of the GPU??? Why count on returning it if you don't plan to do so?