First time buying software from a non retailer. Guy claims he has 30 retail versions of these and is selling them for $40 a piece (retail for $100+ a piece on eBay) so obviously lights went off right away. He says the boxes have never been opened and are sealed (I would verify if we meet before I gave him the money). They are the 32/64 bit versions and he had pictures of the boxes. Are there any way these can have problems if they are still sealed? I appreciate any responses. Thanks.