What makes a yo-yo "built for competition"?

This “plastic”, which I assume is pronounced “placed-ice”, what is this you speak of? Lol

I guess that was my initial thought. My three main players, right now, are a Musashi, a Skyva, and a qv 5000. I can feel the different response from each of these throws, but I’m just as confident attacking a trick with the 20 dollar Skyva as I am with the 170 dollar Musashi.

I see a lot of the same throws being used in competition, but I’m curious why I don’t see an inexpensive plastic in there. It might not be as precise as a high end metal/bimetal, but you can still pull if the same maneuvers.