This explains why if you look back across the whole field you find the best most highly regarded makers only make a very few models. Kuzma would be one.
I like Kuzma products but the last time I looked they had 5 tables, 11 tonearms, 6 cartridges and a bunch of accessories in their 2019 line up. Rega has 8 tables, 4 tonearms and 9 cartridges in their line up.