With that said, I've put Brooks B-17 saddles on my touring bikes and updated at least two of them after they wore out. I haven't done much comparison shopping along the way, so I wouldn't know if there was another better alternative or one that works at least as well.
Given the (amazing!) amount of riding you've done, do you have an idea of how long it takes to wear a B-17 out? Miles of riding, days, months, years?