Very salient comment there! And, while not the only reason for me, but what you noted is sort of one reason that's triggering the itch in me to go back to playing with the BSDs. Don't get me wrong, I still do love fiddling around with some areas of linux once in a while....but then, there are other uses/areas where i just want a server to do its thing, and for my maintenance to be a little less (at least less than some linux distros require). So maybe i'm not the only one? :-)

openbsd = security

netbsd = portability

freebsd: performance, features, drivers, software compat - closest to linux in utility & usability though unlike linux in execution

openbsd: safety for exposed services

netbsd: portable across many cpu & hardware platforms - big-endian powerpc sun, hitachi sh3 jornada, etc, easiest to port to a new arch