Maybe close to 20. Among them, about 10 were cheap Japanese turntables.
Now, 5 working tables: Garrard 309 with two Ortofon arms, Denon DP80, Denon DP75 with two Denon arms, Clearaudio Bluemotion, and Technics Linear tracking turntable.
Somewhere between five and ten. I'm not quite sure. Am I counting the turntables my sister had when we were kids? Am I properly keeping track of my wife's several turntables (including a Linn) through the years? Ah'm gettin' dizzy...