How often do you upgrade turntable ?

Yes, why replace ? Only to have something even better. Many keep their turntables for years, I suppose their speakers too. The rest usually gets upgraded more frequently.

"How often do you upgrade turntable ?"

I wouldn’t call buying 40yr old mint TT an “upgrade”! I have bunch of TTs, and  “timeless engineering marvels” regularly added to my collection.

In one system here there is a VPI that started off as a junior. Over the years it has finally been upgraded as far as possible sans the SAMA.  The Superplatter was a huge upgrade for this unit. Also the SME V arm was huge as well.

I went from a Yamaha when I was a kid... to CDs are wonderful, to a VPI Scoutmaster, to a Brinkmann Bardo. If money is right a Kuzma four point and a Lyra Atlas will grace it, but I'm pretty happy so if nothing is changed I would be happy.

My original comment was tongue in cheek as audiophiles we are always searching for that next improvement. My buddies refer to this condition as "needles for junkies":!

My first decent turntable was a Dual 1019 I bought around 1973.

Upgraded about 10 years later to a lower-level Thorens (TD 165, maybe?).

Then in 1988 I bought the SOTA Star Sapphire Series III I still use and have no intention to upgrade.   I love the vacuum hold down platter--eliminates mild warps and vinyl resonance.