The question really is, if you pay $79 for Vista from these sites, is it
actually going to work? Anybody can copy a Vista DVD and resell it, but the
problem comes when you go to activate it. So when you buy a copied DVD that
costs these sites maybe $1 to do (probably less after economies of scale)
and you can't activate it what do you do? You can't get your money back
(plus the spammers just stole your card number and either resold it or
quickly bought something before you stop them) and the only alternative is
to try and find a workaround (a crack) that will beat the activation. I
think Microsoft spends more money defeating these workarounds than bothering
to shutdown sites. Vista dies if you don't activate, so that's the incentive
to go genuine.