Over 100 cartridges since the early 60's; many came with thrift store turntables which happened to have good cartridges on them, many purchased in the late 80's to mid 90's,by which time most everyone temporarily gave up on turntables.
Nice, 5-7 years ago i thought i could just buy "the best cartridge", later i realize there is no such thing as "best cartridge" and only trying many cartridges we can find what we really like, because they are all different. So i ended up with probably 60 different samples (99% are vintage, but many NOS or almost unused). It's fun, it was hard to imagine we will be locked at home, but with so many cartridges and tonearms, with nice record collection, it's time to audition them.
For example, I purchased a Thorens TD 125 for $8.50 in 1989.
Great! I wish i could buy all the top cartridges from that era for nothing, i was too young for that.
I gradually replaced the styli on most of these turntables for the most reasonable prices compared to todays: Shures, Stantons, ADC's,Pickerings,Micro Acoustics, and almost all MM brands.
There are all American brands, i would add Japanese high-end cartridges like JVC Victor (X1II series), Grace (F14 and LEVEL II), Pioneer (PC-1000 mkII), Audio-Technica (AT-ML170 and 180), ADC TRX series designed by Nakatsuka San in Japan (after Pritchard left the company), Technics (p205c mk4), Sony (XL-50) .... all are MM, except one IM.