RE: Ethanol in gasoline
Actually the politicos and ex politicos own the ethanol producing plants. Much more fun when you get to decide how much you are going to buy and sell for. It's called the middle man.
As far as use in engines goes ethanol really is a good thing. Gas engines running on Ethanol will not have near as much internal wear as with petroleum. Petroleum is a very harsh, carbon based, carbon forming when burnt fuel, loaded with particles of dirt and other undesireables.
The draw back to Ethanol is it's propensity to absorb water as well as swell typical rubber based components like O rings and rubberized gaskets. Not really much of a problem at 10%.
Since you live in Oregon and if you live near the coast or where it rains a lot you might have to run some water dispersant oils into your engines if they will set for a while. Just like you would have to do with glow fuel engines.