It can't last ForEver.....
They wear out just like other seals.... we are just so used to our engines going much longer than usual engines that we are surprised when something like this gives way....
However, if you want to hold on to hope.... I am assuming you are thinking it is leaking from the placement of the drip...
It could be the big ball bearing placed at the end of the main oil channel ...
But you have to do most of the same labor to get to that anyway....

Hey, just saw your location....another candidate for Central Texas Gettogethers....