Only a minor revision to Davt's advice:
Nothing is worth more than what someone else is willing to pay for it. That equation changes frequently, based on a variety of factors. Those "collectibles" price books (including Audio Bluebooks) should be taken with a whole pillar of salt. Esp. those published by people in the business. They have a vested interest in keeping "values" up. Anyone try to sell a beanie baby lately?
Nothing is worth more than what someone else is willing to pay for it. That equation changes frequently, based on a variety of factors. Those "collectibles" price books (including Audio Bluebooks) should be taken with a whole pillar of salt. Esp. those published by people in the business. They have a vested interest in keeping "values" up. Anyone try to sell a beanie baby lately?