I think you're wrong. Look at how far we've
come and how fast.
1950 -> 1960 Major leaps in computing technology
1960 -> 1970 Much change, but not as much as the previous decade
1970 -> 1980 Everything gets smaller, cheaper, and on a single chip
1980 -> 1990 Refinement of what came out in the 1970s
1990 -> 2000 PC dreck
The timeline is getting compressed. Stuff that took 10-20 years to be
considered "ancient" or even "retro" is now only taking 5-10.
I see it the other way. A lot changed between, say 1960 and 1970. The
older machines were still useful and in use in 1970, but the then-current
machines were quite different.
Whereas now, all that's happening is the clock rate is going up. OK,
that's something of an oversimplfication, but not much :-). Todays PC and
a PC of 5 years ago are still the same, broken, design.
So today's stuff will take longer to become classic, simply because it's
not reallyt changing so fast.
-tony