Yeah, I am firmly in the no ethanol camp with my lawn mower, portable gen set, and other small engine stuff. But I am firmly in the ethanol camp with my vehicles. I primarily have used E85 but have recently moved to doing the E30 thing. Many in the performance community will mix E85 with E10 at a 1 to 4 ratio, or E85 and E0 at a 1 to 3 ratio and use it even in their non flex fuel performance cars. With very good results. No codes thrown and no engine or fuel issues. All the current crop of cars and trucks are made for E15 anyway and have to account for variations.
E30 has a 92-93 octane rating. Even if E85 is not significantly cheaper than E10, a mix of the two would be lower than E10 alone. Fuel that is cheaper than E10 and delivers premium octane performance.
All my current vehicles are flex fuel rated. But If I had a non flex fuel high compression or turbo gas engine that requires or could benefit from using premium fuel, I would seriously give the E30 thing a whirl and see how it works out. If it does, then one could have premium fuel performance with regular fuel price. Not sure how anyone could see that as a bad thing.
Freedom is not the ability to do what you want, but the ability to do what you ought.
2006 Cadillac CTS 3.6
2015 Silverado 2500HD 6.0
2017 Equinox 2.4