It doesn't even really take much to get 99.999% uptime from a home server. I have my server, cable modem, router, and firewall plugged into a small UPS that can keep everything going for about 30 minutes if the power goes. I've never had downtime due to power interruptions.
If I lived in an area where the power was less reliable, I'd use a bigger UPS.
In order for someone to accidentally switch off a critical piece of equipment, they'd have to go to my closet and remove all of the boxes and other crap I have stacked in front of it in there. Not likely to happen by accident.
It doesn't even really take much to get 99.999% uptime from a home server. I have my server, cable modem, router, and firewall plugged into a small UPS that can keep everything going for about 30 minutes if the power goes. I've never had downtime due to power interruptions.
If I lived in an area where the power was less reliable, I'd use a bigger UPS.
In order for someone to accidentally switch off a critical piece of equipment, they'd have to go to my closet and remove all of the boxes and other crap I have stacked in front of it in there. Not likely to happen by accident.