.357 was one of the last calibers I got for a revolver, my first was the .45 Colt/ACP Redhawk because I wanted a revolver that could shoot .45 ACP, was DA, and since I already had gotten the .45 Colt cylinder for black powder revolvers, I wasn't divesting myself of the caliber. After that, it was .327 Mag, I really wanted a .32 revolver and I've only gotten 4 or 5 more since, only thing I'm missing now is a true .32 S&W (not S&W Long) top break. They were smaller than the .32 Long top breaks, lighter, and have a proper chamber for getting the most out of the smaller cartridge, which I believe is capable of 12 inches penetration in gel.
So, why did it take me so long to get into .357? The problem was finding the right one at a good price. I didn't care for the GP100 or 686, I wasn't looking for a .357 that large at the time, but I also didn't want a snub J frame. I don't like the SP101, Ruger wasn't making the LCRx at the time in .357, I wasn't hip to Taurus at the time (am now tho) which left me with one option: vintage Charter Arms. I like that they were 5 shot, light, but were available in 4 and 6 inch barrels and were not expensive. I have two now, would shoot them more if I had primers available, but even if I had an endless supply of primers, I still wouldn't shoot .357 that much, the .32 Mag and .327 just appeal to me so much more.
The major benefit that .357 has over the .32's is there's more brass to pick up free at the range. I've never bought just .38 or .357 brass and I have more cases than I do .32 brass. One thing I do is I load the .38 brass to max +P power, sometimes even above that, and shoot it thru the .357's. Significantly more power than standard .38, but not punishing like real .357 is. I like that, but can't do that safely in just a .38 revolver.
Out of a rifle, the .357 has more power than .327, but so too does a .44 or .45 Colt. The .357 is cheaper than .44 or .45 to shoot, but .32 is even cheaper than .357 or .38.
Yeah, the .38 and .357 are in the Goldilocks zone, it's "just right" for most every use, but not perfect or closer to it than every other caliber. I don't need or want "just right" in my revolver and lever actions, I want perfect. .32 and .45 are more perfect for me than .357 and .38 can ever be.
They're still fun tho.