Die hard ? well yes I guess so, the 8088s and the 286es
are more for historical puposes but I'm posting this with
a 486, it all depends for what one uses the puter to me
it is to much of a hype with more mhz and new OSes
I upgrade more seldom but when I do it is a real leap
and really fun it is like with kids if you're with them all
the time it is hard to see how much they grown but if
you havn´t seen 'm for a year or two, wow something
really happened.
A overclocked p-II450@600 and good graphics is steady
and stands tall for some more time I think  ;D
Take a look at the forums @http://w1.494.telia.com/~u49403692/forum.html
and you'll find a whole lot of die hards and people that
simply cannot afford to upgrade or buy a new puter.
Many people just use a wordprocessor, surf and send e-mails
one doesn't need much of machine to do that.
I love tinkering with puters and it doesn't matter how old or new, one actually learn a lot of the basics tinkering with old
stuff, all new stuff has its roots there there is still only
15 IRQs for instance.