Some other boards have a <top> button at the end of a page. Is that something vbulletin can code in? It's annoying (but not a deal breaker) to either back key or arrow button up
(or am I missing something) entirely possible
I don't think you are missing anything.
The Pro Boards software (don't think it is vbulletin) has these things called "Plug-ins" that can modify the standard message board functionality. I've installed various "Plug-ins" over the years, but none of them seem to work. One of the plug-ins I tried was had the functionality you describe. I don't know why and don't have the time/desire to figure it out. I've requested support before, but none came. You get what you pay for, I guess.
So anyway, we are running v5 and v6 is in testing. v6 if/when it comes out will totally change the look, feel and functionality of Benny's House, bringing out interface into the present day.