What's funny about this is we've often felt the opposite. We don't take much of the CG's utilities when we stop. But we pay the same as a humongous rig that has 2 air conditioners and/or 2 electric heaters.
We have actually thought it would be nice if we paid per foot of RV length.
And then there are the folks that say the electric is free so run whatever you can on electric instead of using the propane that we have to pay for... And there are those that light up the entire outside of the rig with lights that run 24/7.
Then we thought maybe it would be nice if we were on electric meters.
I guess it might be difficult to make it fair... :)