5-6 in the 70's and 80's...
since i got back into vinyl in 1999:
2 yrs
2 yrs
19 yrs (still use in a/v system)
3 yrs (soon to be sold...)
just got a new one
How often do you upgrade turntable ?
The table itself, not arm or cartridge.
And when you do, how far do you go ? Big steps, small steps ?
I got my Nottingham Spacedeck more than ten years ago and have no intention to replace it. I would have to jump high for the upgrade to make sense. One day perhaps.