Performance for one. OpenBSD's awesome security features do come at a cost regarding speed. Feature sets is another; NetBSD has some features, like Rump Kernels

Performance for one. OpenBSD's awesome security features do come at a cost regarding speed. Feature sets is another; NetBSD has some features, like Rump Kernels [1], which OpenBSD doesn't have, and has shown some hostility to in the past. Like any architecture decision, it comes down to researching who has the best solution set for your problem and working from there. [1] http://rumpkernel.org/ http://rumpkernel.org/