I am not so sure that it is necessarily the case that
people lose interest
in things that pre-date their own lifetime.
I try to collect only stuff that's
older than me - so end 1978 is my
limit :-) There are some newer things like 11/23 or late additions to
older machines. But all in all I like the fact playing with gear from
the time before me. But I can understand the concerns. I also assume
that the prices for the good scrap won't rise...
Kind regards,
Philipp