DRM to the Xtreme!

If companies really want a handle on the used game market they just have to keep the reins on magical unlock codes.  Buy a game, there's a code in the box (this is for the people without teh internetz).  Buy a used game and you have to go online and request a code ($5 fee please).

So what if nobody ever went online?  How would it know the code had been used?  The douchiest way would be to make people call a number to activate, but that would take infrastructure.  I would say just let those people who don't go online reuse the code, but the first one that logs on at any point destroys the code from then on out for anyone else trying to use the code (i.e. I play with code A, someone else buys it from me and I give them code A, they go online and code A gets assigned to them then if I ever go online my system will say the code has been used and I have to get a new one.)  If I never sell my game then I'd never have to worry about it, online or off.  If I sell my game, there's the obvious incentive to hold on to the code so someone else doesn't activate it causing me to lose my game or pony up $5.  The only ones ever safe are those that NEVER connect to the internet on their consoles (a dying breed I'm sure).

I think that it's brilliantly evil.  Thoughts?  Holes in my armor?  Discuss!