Awesome deal, thanks OP! Nice thing about this is that BestBuy doesn't charge tax on gift cards in CA and when you actually buy something from iTunes using gift card balance, they also don't charge you sales tax. I think the error is on the part of Apple, but still awesome.
If you live nearby an HEB Plus store, they will be selling the Wii for $149 starting at 5AM.
This is my first post, so forgive my inability to properly link this. Copy and paste sans the spaces ;)...