Registered stock certificates can have significant collectible value for all sorts of reasons, with scarcity being the number one driver. The industry has been working to eliminate paper certificates for 20 years and momentum is picking up. Mergers and companies going private add to this scarcity. We will keep you informed about stock certificates that have been or will be eliminated so you can decide if you want one before they go. Scripophily is name for the hobby of collecting old stock certificates.