I don't know if it meets the criteria for 'vintage', but in '98 or '99 I tried out a Mesa baron that I always kind of wished I would have bought.
I don't think I would have been happy with it for the long haul, but it was fun to play with.
Is there any one piece of vintage gear you most wished you owned?
Assuming vintage interests you, what one piece of vintage equipment would you most like to own?