You both may be right in several instances. I feel like I found several lifers used...is that sort of the best of both worlds? I have bought 11 used Roscoes, and kept 7 of them. Saved a pretty penny that way - my 2 signatures, 4 standard pluses, and a standard would cost about $28,000-$30,000 new. I'd probably get a shirt or two with that order!
In the end, though, if the owner/player is happy, that's obviously what counts. I'm very happy with my 'seconds', and clients aren't complaining.
Well stated Adam!
The bottom line is for the owner/player to be happy.
But I still prefer to buy used so if I didn't totally love the bass, I can get all of my money back on a resale (because the depreciation has already occurred) and try it again.