I have been bitten by the rimfire bug for awhile and my dwindling stockpile of .22lr will show that! I will have to find a range locally that has a 1911 in 9mm to rent and see if I really want one.As an FYI BAM BAM - you can get 22 conversion kits for that 45 you have.
I completely understand that, as a body run ragged by myself @ 59 and had major back surgery I get it. While I can I will shoot my 357 and 45 until I can no longer hold it up. lolAt 65 with hints of arthritis creeping in to my wrist, I am sending more .356 lead down range these days than .452. 200 rounds per session of 230gr hard ball is not as much fun as it used to be.
I load the 9's to gnat fart levels that still cycle the slide while punching holes in paper.
But I still carry the caliber God instructed St. John Moses Browning to build the 1911 to handle so aptly.