General Question about Rosetta Stoneee

Anyone tried selling Rosetta Stone software on ebay? Obviously copies..I mean I'm going to buy one from China and try to sell on ebay. Maybe do this occasionally the profit margin is huge so even if sell them twice a month could still be worth my while. But anyone have any info? Like do the keys from china last forever? I think my supplier is decent idk..anyone got info for me? >_<

Send me your Skype ID, friend of mine knows alot, he supply also.