Also, you have no idea if the mnufacturer is going to be around to keep cranking these devices out or even update the firmware.
True story, I bought 2 Cobo Vault Pros, kept them NIB, and then a year later, Cobo dissolves their hardware division and decides to stop updating the firmware. The division either officially or unofficially spun off into Keystone, but Cobo wont give Keystone the signing keys for the firmware, so basically those two Cobo Vaults aged like milk real fast, despite the fact they *could* run the Keystone firmware, if Cobo weren't dicks.