Like anything collectible, it will depend on the condition of the issue and to answer your question, some issues are sought after by collectors and may be worth some cash. Check Craigs List as sometimes you will find someone looking to round out a collection with specific issues. If you sell the collection as a whole, you may find some interest but you will likely sell at a discount. If you catalogue each issue and find someone looking for good to mint condition issues, you will make more money selling them individually. Look for a Sports Collectibles shop in your area, bring in your collection and get an opinion or appraisal.
