Makes me realize how much I take quality of life features in modern servers for granted. We don't need to be physically present to reboot servers, eliminating the possibility (well, mostly) we will power down the wrong one like this - even if the OS is completely unresponsive there's lights out management that can be used to remotely manage power to the system. For the times that one needs to do physical maintenance on a server a blinking light can be toggled through the LOM interface to identify the machine, you can have the hostname display on a little LCD on the front panel too.
It's really amazing to see how far computing has come in just the past two decades.