What's My Timeshare Really Worth?

For some time I have had a timeshare that I inherited from my mother. What little research I have done seems to indicate its current worth is only a fraction of what she paid for it 30 years ago. My question is this: What is the best way to find out what it's really worth?

Very few 30 year old timeshares are going to have any real value. To find the lower end of the scale you can look at completed sales on ebay at the same resort and season and unit size.