Daily deal site 1saleaday.com has a pretty good offer available if you're looking to pick up a Samsung Galaxy SIII (S3) for use on AT&T's LTE network. For a penny under $500, you can get this unlocked AT&T model, in either blue or white, for about the next 10 hours (at the time of writing). It still isn't cheap, but it's probably the best deal you'll see on an unlocked superphone right now.
So if you've been holding out for a good price on the AT&T LTE model of the Galaxy S3, your chance to buy awaits at the source link below. If you're on the fence, check out our AT&T Galaxy S3 review.