I actually made a decision a few years ago to ease off/stop upgrading my analog rig for a few reasons- Firstly because we had kids, secondly I found myself spending more time fiddling with gears than listening to music; thirdly it was getting too expensive and I couldn't afford it any longer.

I stopped at the Loricraft Garrard 401/SME IV combination. Very musical but can be outperformed by some more modern turntables. I even decided to stick to one mid price MC cartridge- Goldring Elite because it works well with the rest of the system and I couldn't be bordered to try anything else. I went through a few Goldring Elites and just replace it. It's been working well for me and I find myself enjoying my records a lot more without wondering if I should upgrade something. Actually, the only new addition in the analog side in the past few years for me was a Nitty Gritty record cleaning machine.
I still upgrade my digital sources, amps and speakers/headphones but as far as vinyl is concerned I hope I am done with upgrading.