I have a different view of this issue, because, I don't use any of the RSN's that I have available ...How much do those cost vs. the sports channels? The cost of sports is just the biggest problem of course. The proliferation of channels with tiny audiences (if any, statistically speaking) that incrementally increase the cost is also a problem, but eliminating the sports is the most obvious way to cut the cost.
However, I sub to the MLB package and the NFL package (NFL is not RSN's I know).
I get the Package so I can see out of market teams.
Steelers and Texans (and Lions which would be in my area, but NFL isn't on the RSN's)
Astro's and Red Sox
Occasionally another