#1 would be the Studer A-820 Master Recorder tape deck.
not only did i wish it, i own 3 of them.
next might be an EMT 927 tt........alas, i never did buy one of those. be nice if i did.
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?