I find it interesting that 20 years ago the future of the 40 S&W was seen as very awesome, sometimes they say than it make the 9mm Parabellum obsolet.
now it seems this round have overstep the peak when the 9mm is in the 117s year of its service life and doing well.

I believe the 25 acp was never a top seller, many owner of a 25 acp pistol probably bought only a 25 round box for the rest of her life. the price make the difference between 25 acp and 22 lr but without a doubt the 25 is the better cartridge giving higher pentration with full metall jackets and the pistol have less problems because of the ammo.