Well, I have a Sugden, and that is desirable to some over here.
Other stand outs that I see are
Naim
Castle
Royd - UK aren't they?
Micromega - OK, a few years ago, but they were around
Rega
Creek
Spendor
Those leap out at me, off the top of my head.
As for used gear, it would seem to be a growing industry over here, with sites like this that support folks swapping goods - I got my start buying and selling motorcycle kit on the Net, and then recently began buying items for audio this way too.
Risky to some, but I have had a rewarding go of it thusfar, so for certain items, at certain price points, off certain boards, I will do C to C eCommerce.
Mark