People are yelling about ammo supply. That is the crisis of the moment, assuming that the current POTUS does not have any Executive order surprises, eventually that will fade. At the moment the 9x19 is the better choice until they make a niche gun just for this round. I suspect Keltec and Ruger will make one. But I am waiting for a major manufacturer to come out with a gun tailored to the dimensions of the round. If so I will take a long hard look at it. If it is close to the 9x19 in down range ballistics, that is not bad and certainly better than a .380 even when the .380 is over loaded by people like buffalo bore.
There is another 30 cal round that is super fast that I think the czechs are selling, but the cost is beyond reason. I expect it to be eventually be available in other guns. The thing is a gun manufacturer they make money from selling guns. If I have say a glock that works for me, they must offer something new that moves me to buy another pistol. Guns like a glock last for 1,000's of rounds, only a few people manage to wear them out.
Lately I see that AR uppers that went up in price are dropping because obviously the stock exceeds demands and also the final ATF ruling on AR receivers is likely coming down in a month or few. The point is the market is a driver in the selling of new guns.
Those BRNO 7.5 FK Czech guns are offered in polymer now so the price has come down. They come with a 10mm/40 conversion as well included and there are 9mm conversions out there seperately so you have a lot of wiggle room with shooting costs. Last I looked they were in the $1,600-1,700 range instead of the originals that were maybe $8,000. Looks fantastic. Not sure I can resist much longer but I am trying.