Valid point of course.
It is interesting as I think about it that neither the M9 nor the 1911 ever enjoyed terribly widespread, long term police use. The Beretta probably did in the 80's but it seems to have been replaced quickly. The 1911 was in Army service for 70+ years as American cops were mostly still carrying revolvers.
Beretta is still issued to LAPD. Probably the best known example.
As far as the 1911. FBI HRT still uses em, the Texas Rangers, LAPD SIS, various SWAT units and various famous lawmen.
One could say they didn't have the market penetration of Glock but I'm not 100% sure that that was a statistic tracked in the past.