Hello...I am currently in the process of trying to sell my used Yamaha YAS-23 which I used to play in high school. It has been in storage since I played and it really is in pretty good condition. There are a few minor scratches, but other than that everything looks good. Pads, neck etc...I am curious as to what a sax such as this may go for used or if anyone is aware of somewhere I could take it to get an appraisal on it. I do not want to sell it to someone without doing some research. Any kind of help would be appreciated.