9PLE is great stuff, one of the best rounds available back when everybody was carrying 9's and it's reputation as a "man stopper" was well earned, it was also known for positive function and accuracy. Dekalb County, GA S.O. just recently changed to .40 but they carried 9BPLE up til then. I just switched to a .45 for duty carry but the 9BPLE has been my carry load for years, still use it in my off duty piece and my BUG.
People haven't changed, the stuff that killed them 10 or 20 or more years ago will kill them just as dead today. The advances in barrier penetration, bonded cores, etc. really don't mean much for the person that uses their gun for home protection or concealed carry. That's why the good old 158gr SWCHP .38spl is as well respected today for self defense as it was 50 years ago. If something works and works well it lasts, that's why 9BPLE is still around.