If you're in the market for a wireless charger, you probably haven't thought to check AT&T for deals. That's just where you can get some Qi chargers for a veritable pittance. The Nokia DT-900 is usually $50, but you can get it for quite a bit less.
If you buy 1-2 chargers, they cost $24.50 each. Not bad considering most retailers are still asking close to the regular price. It's $50 at Verizon and $40 on Amazon.