Well, this is a tough one. First off, if you can find gasoline without ethanol then yes, DEFINITELY use it, but like you said, it is tough to find, depending on where you are. I sell gasoline and diesel (among other things) and will tell you that the ethanol blended fuel is a joke. Don't know who paid who to get that pushed through by the federal government, but it is no good for anyone but the ones in the ethanol market, and of course the mechanics. We are in a rural area, but just about 60 miles from the DFW Metroplex and about a month ago the last place we could find without ethanol, stopped handling it so we had no choice but to switch. In newer vehicles, you shouldn't have any issues, other than worse fuel mileage. In older ones, watch out because it can break up sediments and any buildup inside the tanks. You really have to watch your fuel filters. We now have to change them in our pumps about 6 times more frequently than before. Just a mess, but we have to live with it.
Anyway, I will get off my "box" here but if you can find pure unleaded, by all means, buy it. I do recommend, no matter what you use, to add a product called Sta-bil to your fuel. It is a fuel stabilizer and is a must for any fuel that sits for a while. Put it in all your gas cans that you use for lawn mowers, or ANYTHING that will likely sit for a while and the gas won't go bad.