I do think that older, more original are more "pure" in a C&V sense but that does not compel me to disregard or disrespect what others desire or possess. After a poster accused me of being a "purist" I became more aware of my comments.
my 1982 Grandis and '85 Fuji Team are in my collection. My 1994 FTW aluminum framed bikes are not. I guess for me the line is between those two dates. Going back a certain number of years (say 25 for me?) would work well with the N+1 equation.