Riot... I see what you did there

I'm probably an idiot for just noticing this, but Riot provides you with 20 mastery pages before you have a cut off. Which is not only pretty nice to have so that you can customize it for your twenty favorite champs and the few people in between, but it also gives a hint as to how many champs you'll need. Around four in each role/lane, with a few natural inbetweens that you can play in various roles without much of a gap in how well you do.

So, I know that this is pretty small, and I may be sort of overreacting, but I think it's really cool that there's sort of a minimum that you can do if you really just want a small pool of champs that you're good with and have them at what you believe to be their maximum potential.

What are everyone else's thoughts?