but with or without segwit price will keep going up because bitcoin is still insanely undervalued.
How do you come to this conclusion? It is basically impossible to value bitcoin, so it could be massively overvalued, or undervalued.
I don't really see too much to suggest that it is used often enough to be worth $20billion or more.
I don't know a single other person who uses bitcoin, and when I try to use Bitcoin, I am usually disappointed.
Be patient, most technologies suck at the beginning but eventually get better, just look at the internet, the internet exists since the 70’s but it wasn’t until the 90’s it became mainstream and even then the web was not that good, it was not until the new millennium the web as we know it began to exist.