Buying from tmobile contract free without account? topic

How much luck have you guys had buying a full price Note 4 from TMobile without a contract or Tmobile plan? I'm on AT&T and wanted to bring one over. I'm a bit leery of swappa, eBay and Craigslist as I see a lot of these scams going around where either it's reported stolen/lost for the insurance money, or they stop paying the payment plan on Next/Jump and the phone gets blacklisted.