Pc gaming will always be a favorite just on mods alone but I think what puts so many people off of this option are a couple reasons:
When consoles were starting to grow around the 90's and you had game companies getting huge from their n64's and ps1's, no one on a pc platform could offer that same experience. (Bright controllers, this personal type of interactivity, etc..)Some grouping of the population has grown with these companies for those experiences and nostalgia driven appreciation alone.
Believe it or not, there is still a large portion of the populace that is still computer-illiterate. The idea of getting the best computer parts for affordable prices is not a concept that has been made aware to them yet let alone any knowledge of how to build or troubleshoot their own pc.
Something to think about, great post. Subbed.