cctalk-bounces at 
classiccmp.org wrote:
   I think
typically it just gets misplaced, not lost :-) 
  I bet it still exists in a lot of cases, but
everybody's forgotten 
 exactly  > where
 I respectfully disagree. Once a product reaches end of life,
 it is disposed of. 
 
I can second that disagreement. Everywhere I've worked at, the
company cares about the current product. The previous versions
may well sit in a code repository but usually that's because
no-one cares enough about the disk space to go and recover it.
I expect that there are exceptions, but they're few and far
between in my experience.
Antonio