How old to qualify for vintage?

Not a fan of the myriad mainstream brand mid-fi transistor receivers.

Quilted Northern Rustic Weave

I'm almost disappointed it's not real. 

But what about, "Heirloom" gear?

Lessee -
my Hafler DH-200 built in 1979 (from a kit)
my Soundcraftsman rp-2240 eq (circa 1979)
my Bryston 1b-mc preamp 1979
my carver tl-3200 cd player from 1989
my infinity 6Kappas (1995)
my jvc ql-a2 furntable from 1984

all pieces work, but the carver is soon to be replaced as it has an annoying skip that costs more to repair then the thing is worth. But still, these are all classic, solid pieces that have served me well for a long, long time.