Besides the two workstations inside my house, I have three networked servers running in a closet in my shop - all 24/7 except for maintenance downtime.
As long as I can afford the electricity, that's how I'll roll.
Likewise. I've spent way too many years being able to reach out and touch my computers (and the data stored on them) even if I happen to be in a different town (like a typical workday) or even a different state.
I am considering a guruplug as a home server, though. It has lots of potential besides the power savings over a desktop.
-j