Some of them ARE quite nice.
I just remembered a Bullnose Karambit I'd bought before (still available at General Gun where I traded it in if anyone wants it).
The lock engaged perfectly, the blade was perfectly centered, and,
for some odd reason, the finish was proper on it as well.
Didn't like it for off-side carry, as it stabbed my hand once when I reached in (finger hit the wave). But that wasn't the knife's fault.
Since I remembered this folder, I have to adjust the good/bad ratio a bit. It's now 2/5 of them which had issues, not 50%. My bad.