Prog is, for most people, a minority interest music, like Jazz. Finding four musicians willing and able to invest the time necessary to develop something intelligent and original will be like searching for the Holy Grail. Investment vs. return ratio would mean it's for a very dedicated few.
Personally, I love the fact that Prog is probably the only music in the popular fields that isn't linked to dance and/or the blues. It is an essentially English invention with no direct links to the African American influenced dance genres like Funk, Soul, Jazz, Blues etc etc. Thus it works best for White men who can't dance ;-)