I had some Pioneer table back int he 70's, Early 80's, acquired a Denon DP-79? at a dealer fire sale (literally). Purchased a Technics SL-1200MK2 in 2005. Everyone can smirk now. However, to me it's the last turntable I'll ever need. Dead quiet and has that PRAT that everyone is so fond of. Currently using a Goldring cartridge and really pleased with what I hear.
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.