I saw this deal the other day, but (being the instant-gratification type of guy that i am) i stopped in my local AT&T store to see if they had these in stock and if they could match the online prince. The in-store deal they were running was $20 per Nokia wireless charger. It was supposed to be "with purchase of a Nokia phone", but the manager said he'd sell me 2 for $20 each, so i'm a happy guy.
I've never tried wireless charging before, but with the battery life not being as stellar as my Note 2, i decided that having a wireless charger on my desk at work would make a lot of sense, and having one next to my bed would make wrestling the charger away from the phone when i get an early morning phone call or email no longer a problem. So far i'm very happy with these, and they work with my Nexus 7, too!
At $20 per charger, how can you lose?
-d