The $20 a gallon is enough to cut it's use in my car. I mix a bit with 94 octane pump unleaded. Obviously that won't pass fuel check in NHRA classes.
Maybe the fuel rules need to be looked at again in the future to allow other gas and still detect "rocket" fuel.
By the way, it's election day here today so i'm off to put my X for "None of the above" or just choose the best looking female candidate.