So sorry to see that these have been discontinued. I have two -- one attached to my Bryston/WP7 system and one attached to my Headroom Max Balanced amp. I haven't listened to a ton of DACs, but in side-by-side comparison, it beat the DAC in my Bryston 26DA preamp (and, not surprisingly, the one in my circa 2006 Headroom Desktop amp, too). Really my absolute favorite piece of source gear. I think the Transporter and the Squeezebox Boom really demonstrate the engineering genius of the original Slimdevices team.
I'll be hanging on to my Transporters for a while!
I think eventually they will go up in value, unless something better takes their place. There is no other unit out there that does what the Transporter does, except for the Sooloos which costs 4-5x as much. The Transporter still has more functionality though, with all the inputs and outputs. The Linn units do not have digital outputs so you cannot use them as transports. Plus, there is lots of empty space in the Transporter which makes modding it a dream. Marantz just released one for $799 which looks great for the price, but it does not have BNC or AES/EBU digital outputs or balanced analog outputs, nor does it have a word clock input. The Transporter is still truly in a league of its own. The only thing that bugs me is that it occasionally soft-resets itself when listening to 24/96 files and net radio, and sometimes SqueezeServer will automatically stop and you'll need to restart it.
Edited by IPodPJ - 11/11/10 at 11:03pm