Really? Someone is going to pay $20 on ebay (plus shipping?) for a $20 gift card? How is that even worthwhile.
Not to mention, I pay $10 for the card, which requires me to sign up. Wait for it to arrive. List it on ebay for $20, which takes a few minutes of my time, pay a listing feed ($1?), most likely incur a Paypal fee ($.50?), then have to mail it to someone.
The more I look at this deal, the more worthless it seems. I think I've lost $10 of my life already :)