Since you're new I'll let you in on a tip. If you were to sell a $6 gift card you would make enough credits to buy this. Then it cost me $3 to ship so I make $3.
Now if you want to sell something you've got laying around such as a digital code then it's nothing out of your pocket.
Now if someone is impatient and wants to pay $23 (usually not the case since you probably only have 1,000 for signing up) that's their deal.