I don't have any firm data, but I suspect it's
way beyond that.
Only among the people I know personally, and clubs, I'll probably be able to
count around 20 (if not more). And that is a very small circle of people
compared to the whole world.
Yes, the true number may be well beyond 1000. Just thinking of the VAX
machines, big and small, between RCS and RICM and associated members,
I can probably come up with 40 machines.
--
Will