I have some old fishing reels that I still use made in the 1950's and they were made so you can take them apart clean and service them and they are still going strong and are like a nice watch on the inside with all the metal gears, I was noticing about the Endura and it had me thinking, with the materials used and the screw together construction, a person could probably keep these type of knives going forever if they wanted to. There are repair kits available and as many as have been sold, if a person ever wore something out inside like a lock or broke a blade, parts should be readily available and a do it yourselfer with a torx screwdriver set could probably do it. I know it would void the warranty, but models like the Delica and Endura seem like they were developed for the do it yourselfer in mind.