More is better
I agree with Thermite, I have I'm guessing north of 12 just mag bases not counting some clamp on style, and chuck or collet mount.
I will though highly endorse Noga, it is a great design and the quality is definitely present. I feel that are better and easier to us than 98% of Starrett's comparable models. I say this because Starrett is kinda the gold standard for a lot of folks.