[quote name='GenPirate']Wait so if I call Gamestop they will remove the tax from my pre-order because I used a Gamestop GC?[/QUOTE]
probably not...there seems to be some confusion over this and this due to different states handling trade in credit differently in regards to taxes. In some states, the trade in credit is applied to the item being sold prior to sales tax calculation (ie, if you bought a $60 game with $20 worth of credit, the sales tax would be based on a sale of a $40 item)...in other states, the trade in credit doesn't impact the sales tax calculation at all (ie, a $60 item will be taxed at $60 regardless if you pay for the entire thing with a trade in). Now this is just with trade in credit...with a regular gift card, you should be paying tax on the sale.