Well, there's definitely some truth in both the perception of the glamour and more ARC owners upgrading to newer models. Could be explained as brand loyalty or great marketing but either way, it helps with both desirability and resale value. Another side benefit of these artifacts is there are mere owners out there to provide input of which model/year to buy. I have no doubt there are better preamps out there for a comparable price but its more difficult to get a broad owners' view of how good they are.
bpolleti - Strangely enough, there's a Herron VTSP-3a (R03) for sale right now in A'gon and not much of a stretch from my budget... in case anyone else is looking for one.