...to have seen .32 S&W, .32 S&W Long, .38 Short and Long Colt, .38 S&W, .38 ACP, all of the WCF pistol/carbine rounds (some in "high speed"), .30 Luger, and .30 Mauser cartridges on the shelves. Plus .22 Win Auto RF. I may have forgotten some--maybe .32 and .41 Colt, for example, and some more obscure 7.65 and 9MM European rounds, perhaps. That's not to mention probably a dozen rifle rounds that are now gone.
To be frank, had someone told me in 1964 that some of those cartridges would be collector's items--that one day, one would not be able to afford to feed a S&W .38 Regulation Police, and that one would have to look far and wide for ammo for my S&W .32 Regulation Police--I probably would not have listened.
As long as one can find bullets and boxer primed brass one can handload, but I do not like handloading SD carry ammo. For plinking and practice, great. But unless the brass has a common head and rim, even that will come to an end.
At one time the .32 and .38 S&W loads were almost ubiquitous, but no more. I consider the 9X18 to be on the same road, just not as far down it yet.