How much is my COnn Saxophone worth?

Ok I don't play the sax I just got this as a hand me down.This is a Conn Saxophone made in Mexico,serial number n109446.I finally took it out of the closet in hopes of making a little bit of money off of it.I looked on various sites and there are so many people trying to sell used saxophones anywhere between 3 and1000 dollars or more.This one is used but has all the pieces and quite a few scratches like most used saxophones.So how much is it worth?