I understand this, however some things may need to be in your possession for a while to really rise in value, in this case buying a tag, putting it on your xbox and giving it another owner reduces its price. Also, selling it the next day puts really puts the name out there and exposes it to turboers for longer...
Also really scummy to act like you have interest in wanting the tag to play on and then selling it the next day for more than the previous sale.
Who give's a shit if he just bought this. It's the owners decision to sell it or not. I can guarantee you he already knows that it will have AID's etc. GLWS!