Can you expand on this a little?

I sometimes hear of keyboard aficionados having strong preferences for various "colors" of Cherry key switches. And I see high-end keyboards advertised with having particular choices of Cherry switches.

But I have no idea if it's actually worth the effort of making the stars align so that I have a particular kind of Cherry switch under my fingers.

How do people figure this out without wasting a lot of money? I.e., is there some kind of keyboard that shows off all the popular Cherry switch types? If so, do people end up having to buy one just for that single use, or is there a way to rent one?