Believe it or not there are some people for whom the micro-sized .380s and mini-9s present too much of a recoil challenge. The PP-sized Bersa is small enough for easy carry, big enough for easy controllability, ultra-reliable and usually very accurate. And while I'd never deny the 9mm is more potent, if you've ever actually chronographed the 9mm out of a mini-sized pistol and compared it to the .380 out of the Bersa or a Walther PP, as I have, you'll find that the difference is not all that huge. A 147 gr. 9mm load won't break 1000 fps, and a 115 gr. typically won't make 1100, while a good 95 gr. .380 load out of the Bersa will be right at 1000.well, it's a large, heavy, 380 blowback, which means it doesn't have much power, and there's 9mm's that are smaller, lighter and cost very little more. The pocket 9's offer 2x as much power, and a 9mm is feeble enough, if you really have to stop some body.