Problems ethanol causes in vintage cars?

Yea it is gettin pretty rediculous I have rebuilt the carb on my weed eater 7 or 8 times and 2 times on my lawn mower not to mention how much hose I have replaced.
Another bad thing about ethanol fuels is if they sit in the tank of your car it can seperate and then you go to start the car and you suck basically water through the system.
I will stick to payin a little more for non ethanol fuel and when that goes away aviation gas.