Glad you decided on the only logical course of action and got 'em all!
I got bitten by the CZ52 (I think more properly it's the Vz52) bug a while back. Got one, paying way too much for it because I wanted one NOW. But I shot it a lot and loved it. I broke one firing pin (who the heck but some Com-Block nation would put such a crap firing pin in an otherwise robust weapon?
It's like putting tin-foil treads on a Tiger Tank!), put in a new machined one and it's still rockin' along.
Take a careful look at your rollers and the notches they fit in under the barrel. The original rollers, IIRC are a bit softer than they should be and can gou out of round. If that happens, they "wallow" more than "roll" and can wear the notches. That means you have to buy a whole new barrel. If you do, though, they're not that expensive and you might as well replace the rollers with hardened ones while you're at it. In fact, if bought as a shooter rather than strictly for collecting, I'd replace the firing pin and rollers as a matter of course before ever loading up.
Next I bought a Tokarev, as I had my C&R by then and got a Romanian with holster, 2 mags, and cleaning rod for just shy of $200. Now the Tok sees far more range time than the '52. That really small grip fits my hand better than it does some, I guess, and I enjoy shooting it. Both are quite accurate. My 13 year old hit a golf-ball sized "target of opportunity" at the range from about 35 yards the other day with my Romanian Tok.
Then came the P-64. Found one at a gunshow for $165 with two mags, person-to-person (i.e. no paper). It is indeed size comparable to my PPK (just a wee bit longer) and the Wolf spring kit is
essential. But OMG the recoil!
I've shot a lot of hard-kicking guns thru the years, but this is one of the few that left my hand sore. One might say that it "kills on one side, wounds on the other." Still, for what it is, I think it'd be a great CCW piece. I put some really beautiful wooden grips on it that I got for a ridiculously low price. They look great, but make the weapon way over-sized. I'll most likely yank 'em off and put the original black plastic ones on it, especially should I ever decide to carry it.
All that said, I'm thinking my next cold-war gun will be a CZ-82 while they're still cheap. I suspect these cheap foreign military guns and the ammo that feeds them will be first on any new gun control measures. Gad, given all the stir about the FN 5.7mm round a while back, I sure hope none of the anti crowd decide to test the 7.62.25mm abgainst Lvl IIA body armor!