The games simply have their problems... it's just general "old games on new systems" issues. There's nowhere else you can buy them that will make them magically work better, especially since the DRM of the original CD versions is no longer supported by Windows itself.
I'm just a volunteer here who knows a lot about getting these games running, though. If you choose not to play the games at all, just because you don't want to look into the available community patches, that's your own business, but, me just being a volunteer, I have no idea how Origin's refund systems work. You'll have to figure that one out yourself, sorry.
