I’m kinda with you OP. I understand why 9mm is more popular, and rightfully so. But I don’t get the hate for .40. In my opinion it still fills a roll even if it may be more of a niche nowadays. I really don’t get the guys that say .40 is too Slow and Weak but then mostly shoot 9mm. I have a Tanfoglio Witness Elite Match in .40 that is a lot of fun. It is a big gun though and .40 out of it feels more tame than 9mm out of my CZ P01. Eventually I’d love to get a 10mm barrel and mags for it. The 10mm barrels are hard to come by so I may have to settle for just having it rechambered.