I bought a YAMAHA YAS-52 Alto Sax in 1997 for about $1,000. It was slightly used and in excellent condition. Since then, it's only had about 3 years of consistent use. I have no idea how to go about selling it. Should I get it appraised somewhere, or just auction it online? It has some light scratches and normal wear, but I believe all the pads and keys are in good condition. I'd say its in the $500 - $700 range, but don't have a lot to base that on. Any suggestions?