The idea of only one workbench is ... fascinating.
But of course this thread discusses the bench used for building muzzle loaders. I'm working on cleaning up two for that purpose, in my garage. There is yet a third one in the garage. My reloading bench in the patio room is a small one. And ... 3 or 4 more in our hangar at the airport. Workbenches for fabricating airplane parts are 10 to 12 feet long.
This one is pertinent, even though it is one of three Jewelry Making workbenches that I built. It is the first one, built for my wife. And she last used the tools shown to polish the Pan of the Lock for my Traditions Flintlock .50 Kentucky rifle.