Myself, I shot bullseye for several decades 1970's thru mid 1990's and still toy with it today. I have used my pre 16 ribbed barrel, a 16-3 full target and the 16-4 and found no advantage over a K-38 or a model 52. The whole time shooting, I never really saw anyone seriously competing with the 32 cartridge here in America. It just never caught on and I always thought it was a hold over with the Canadian and European's as they favored the 32 calibers even as Police and Military guns. Many K-32's were exported.
But like you say, it's a hobby and one has to enjoy it so no harm in playing with the 32 S&W Long. It is an inherently accurate cartridge.
If you ever run into a Colt Heavy barrel Officer's Match in 32 S&W Long, there's another candidate, although they are as expensive. Not as much as a K-32 for some reason, but every bit as accurate.