.32 Smith & Wesson
.32 Smith & Wesson Long
.32 H&R Magnum
and .32 Auto.
Well, this is one thing, right here. With the exception of the .32H&R (now pushing 30 years old, and able to match .38 SPL energy when loaded to top end) all these rounds are weak. More than a .22LR, or a .25ACP, but not by much.
And other than the .32ACP, are only owned by the relatively small number of .32cal handgun enthusiasts. Not mainstream defensive, OR sporting rounds.
The .327 Magnum, even though more powerful, is still in that group. Simply put, there is no real demand for a .32caliber pistol these days. What demand there is comes from A) the pocket pistol group, which likes the .32acp because of some of the pistols it comes in, and would likely drop the .32 caliber if the pistol they want came in a bigger round. and B) the shooting enthusiast who is either on a nostalgia kick, or simply likes to check out anything new and different.
There's nothing wrong with the .32 caliber, per se, but there isn't enough right with it to make it a mainstream seller today. If you're into the .32caliber,enjoy it! It has uses. But don't go whining about how there aren't 57 different factory loads on the shelf all the time. You bought into a niche market. Loads are going to be scarce, and expensive. Deal with it.
I've got pistols chambered in rounds that are out of production. I've even got one that takes ammo that was NEVER in production, other than a small run by a foreign maker nearly 40 years ago. If I want to shoot those guns, I have to make my own ammo. Period. I'm ok with that. I choose them, partly because of they are rare. Not in the mainstream, not cheap, and never going to be.