I ran one as my primary work machine about 5 years ago and then built a duplicate for home. Yes, it saved me money (I built the box for about $600 and it was ha

I ran one as my primary work machine about 5 years ago and then built a duplicate for home. Yes, it saved me money (I built the box for about $600 and it was hardware equivalent to probably a $2000 mac at the time) but you basically couldn't ever install any update (even security updates) unless you were mentally prepared to potentially lose half a day to troubleshooting. Usually they installed fine, but you could never be 100% sure in advance. This meant putting off updates longer, which would lead to bigger updates, which only raised the chances of things going wrong. By the time OS X had gone up two major versions I just stopped using it and got a Mac mini and dumped more RAM in it instead.