How can you do a blindfold test on art? That's what you get when you buy a handmade bass, functional art: Superb craftsmanship, great playability, stunning materials, and the knowledge that the maker of the instrument actually cared about making a superior product. Just because an original da Vinci sketch looks like its photocopy, doesn't make the photocopy 'just as good as' the Da Vinci piece.
Well in that case most of the vintage Peavey's are hand crafted, such as the first 2 years of the T series (1978 and 1979). And that agrees with my argument because vintage Peavey's are wonderful instruments and they cost welllllllllll under $10k. (I have never seen them sell for over $900).