Buconero117,
I, on the other hand, find that the BlueBook is way off in the other direction sometimes, especially for pieces which are older than 10yrs old. The formula you quote seems to be the one used by the Agon BlueBook when they have nothing else. That puts a pair of great vintage speakers from 30yrs ago at 15cts on the original dollar, when that original dollar is worth many times what today's dollar is worth. That's a bit what I am getting at when I say yesteryear's almost classics can be a bargain. So far, I have been able to get a couple of things at 15cts on the dollar, but they are the very rare cases. And I love buying from people who would sell me the best stuff from 1980 at 20cts on the 1980 dollar.
I, on the other hand, find that the BlueBook is way off in the other direction sometimes, especially for pieces which are older than 10yrs old. The formula you quote seems to be the one used by the Agon BlueBook when they have nothing else. That puts a pair of great vintage speakers from 30yrs ago at 15cts on the original dollar, when that original dollar is worth many times what today's dollar is worth. That's a bit what I am getting at when I say yesteryear's almost classics can be a bargain. So far, I have been able to get a couple of things at 15cts on the dollar, but they are the very rare cases. And I love buying from people who would sell me the best stuff from 1980 at 20cts on the 1980 dollar.

