Actually, according to DirecTV legal, only licensed resellers may sell D*-branded equipment, even when it is legally owed (i.e. not leased). They claim it contains proprietary software that is “licensed” and may not be “sold”. They are cracking down hard on eBay sellers. Of course this is no guarantee that all units for sale are by reputable, authorized resellers, but it does improve the chances. Basically, if you are buying from a seller with good feedback from selling other D* equipment, you are likely dealing with a an authorized resleer.