Exercycle Motorized exercise bike~Vintage~ (I Would Like To Know It's Value?)

I do not have a picture of this item, but it is a large and heavy exercise bike that is motorized. It is definatly vintage and it still runs. You just plug it in, sit on it like a regular bike and then turn it on and away you go! As I said, it is like riding a bull that wants to throw you off, especially at high speed! It has a high and low setting. When you turn it on, it exercises you automaticaly. The seat goes back and forth along with the handle bars to work your upper body. I have had this bike for many years and would like to know what it is worth?

Fair