The end user benefits are none of the things you mentioned. Mechanical watches are jewelry. They look nice, and hopefully they remind you of something. For many people it's a connection to something cool. Omega sells a lot of moon watches, and it's not because anyone buying them is going to use the chronograph to time a fuel burn with life or death stakes. You're probably not wearing your Daytona at the race track or using your Longines watch for anything Amelia Earhart or Howard Hughes did. But it's fun to think about how you have a tool with a historical connection - whether that is to history everyone knows, or something more personal to you.