dont see the point in these really... I mean enough ? probably but I dont see the reason to handicap your self when there are so many decent compact 9mm's out there.
Ballistics of a snub 38 are pretty low compared to say a 3.2" 9mm. Regardless of what folks consider enough, I would think ballistically heavier or faster or both is better.
IAW Ballistics by the inch tests a 642 will throw Speer Gold dot 135's at 897 fps,
a 3" 9mm will toss 135 gr hydroshocks at 1032 and thats the low recoil, plenty of 147 gr loads up around 1000, The short barrel Gold dot load 124 is 1150 out of my Ruger LC9 s pro.
A gun like a Ruger LC9 s pro, carries 8 rounds, has a better trigger, better sights that are easier to adjust, cheaper to buy, easier to carry reload and faster to reload.. Flatter, easier to conceal, and the same size and weight. For most people it shoots flatter and allows for much faster follow up shots. Bottom feeder that size is just a better platform.
Enough ? eh whos to say. Every situation is different but for me I feel like I can have better without any disadvantages.