I don't know if this proves anything, but the Conservation Dept. ranges around here were (or are) being renovated. Conservation runs two staffed ranges about a half-hour from where I live, which puts them about 30-45 minutes from St. Louis, and even closer to the heavily-populated rural and suburban communities that surround the city. As they only charge $3/hour, I would imagine they compete pretty well with the $18/hour indoor ranges,* or even the free, un-staffed Conservation Dept. ranges further out in the sticks. The Busch range in St. Charles County got particularly crowded on nice Saturdays, so that I got to planning my range trips on cold or rainy days.
But Busch is closed for the next 2-3 years, so they can tear down the old range, and erect a whole new setup, with bathrooms (thank goodness), classrooms, etc. The Jay Henges range was renovated a few years ago, but not as extensively. I don't know if that has more to do with skilled bureaucrats expanding the budget (and making the range more "green"), or an increase in traffic. Or both.
http://mdc.mo.gov/regions/st-louis/august-busch-shooting-range/august-busch-shooting-range-renovationhttp://mdc.mo.gov/newsroom/mdcs-jay-henges-shooting-range-attains-4-star-rating-nssf*There are at least 2 or 3 new indoor ranges in St. Louis County within the past 5 years, and as many new gun stores without ranges. One of the new ranges is ten minutes from my house, but it's much too expensive to be much of an option for me.