Sales is not always held up to the standard of enthusiasm and minimization of remorse on the part of the buyer (but perhaps it should be).

We have (at least in my country) consumer protection laws. One of them says you can return a product within 14 days of purchase and receive your money back. With this, I think ethical sales standards are fine as they are. Since it's not applicable to the seduction "market", it should be held to the highest ethical standard.