Well ok then I see that I'm a tad bit behind the curve here but they not only have great prices for some CZ's but their ammo prices look to me like they are hard to beat. BTW I left out S & B but they are good also, just a little more expensive I think.
As to the 9x18 round, you have to take into consideration that to a point the military is a driving force behind what weapons and ammo are made and used. And they are now and allways have been completely and totally eaten up by the "Not Invented Here" Syndrome, and not just about foreign items but when they put out bids they have the same attitude unless someone high up the food chain is insisting on something different and has the stroke to make the buyers (R&D and Procurement) do as they are told.
As far as I know the 9x18 round has allways been since at least WWII a staple of the German, Russian, and that area of the world since it's cheap than 9 to make and so are the pistols, but it's may more effective than a .380. It's sort of a cross between a .380 and a 9mm. Ad to that the fact they are FMJ as in metal jacket they then to go where you point them very well. Sort of like the 7.62 x 25's little brother, Maybe baby brother.
That's not to say we and others haven't come up with some of our own rounds that are not off the shelf as it were until they caught on. Also keep in mind the mindset back in those days, "It's a Commie Made Product and we don't used Commie stuff!!!" and there you go, More than likely the reason CZ's didn't start getting popular until late last century (I love saying that! So fraking weird!), They were made in what was then a "Communist Country" and other than the AK it's hard getting things introduced into this part of the world, at least when Firearms and ammunition are involved.
Anyway I think that's the reason in MHO but then I may be wrong, but having dealt with the Military NIH attitude first hand, I do not think I'm far off on my guess.
All in all I would not hesitate a second to shoot it out with someone that had a .380 if I had a Mak and I'm pretty sure with the exception of distance I would stop stop someone with a 9mm faster than they could stop me with my Mak, (It's smaller but it's blunter, NOT fatter just more bullet, and it's a Real FM
J and not a Tin or brass FMJ pointy 9mm) depending on skill levels and circumstance. I sure as hell would use it on a car and driver if I saw a drive by. Not that I ever want to actually test my theory