Some guesstimates are high and some are low, but you are mostly in the ballpark. I've found that eBay
sold prices are the best indicator of current value. Log in to your eBay account, type the name of the item into the search bar which will show you items for sale. Then, click on the check box on the left hand side which says, "sold" and you will then see what items actually sold for over the past ninety days. This method doesn't work well for items that rarely sell, but many similar/identical items have sold. Make sure you account for condition, reputation of seller, shipping costs, etc....
Truth is worth finding and life is too short to work for money.
