Simple way to make some usage off it is to get as far on it as you can to the point where you have all the version exclusives (minus Groudon, which I don't really think counts, since it's in Emerald anyway), and trade all of them to your FireRed, or Palpark all the nuggets, PP Maxes, Exp. Shares, Macho braces, etc., along with the starters and fossil Pokemon, if you haven't done that already (which I doubt). Then, when it erases itself, either get Nintendo to exchange it for a functional copy with your friend's receipt, or...
There's the old classic of selling it without telling the game shop clerk it's broken? That's what I'd do when it has no more use.
And yes, I have 27-8-ish infractions now, though the ban was without infraction and entirely a straight-from-impulse thing from that gigantic hypocrite we all know and quite frankly want to hang. Guess who it is and what he flexed his E-penitz for?