I hope it's the same in the US, but here in the UK we have very strict laws about buying things "at a distance" - we're allowed to simply send stuff back within 7 days for any reason at all, and receive a full refund. Also the goods have to be working when we buy them, otherwise they have to be replaced or a credit note issued providing we have proof of purchase.

In none of this does it say "ah but if you pay with PayPal we're just going to screw you over".

Popular assumptions about the way the US works would make me assume you have equal, if not more laws like this.