If you know someone whose already a Verizon customer (and already has a LTE device), you could ask them to order the phone full priced online for you. They won't have to activate the device themselves and it shouldn't have an effect on their account. I did it this when I bought a Galaxy S3 at full price through Verizon's website but instead gave it to my partner as a gift.
Or if you're the more patient type, you could purchase it through an online retailer like Amazon which was selling it at $599 or Wirefly.com at $650. Unfortunately Amazon has it back ordered so you'd have to keep checking on it.
My question, is it possible to activate the device on AT&Ts network without having to activate on Verizon's first?