If you're into trying out various distributions or enjoy having various Linux 'servers' to ssh into and play around with, then you should get started with single-board computers. They're cheap, robust and fun.
This quick tutorial focuses on the Odroid c2. The features vastly outweigh what's...
I currently have an ODROID C2 that turns on/off 2 servers at my house via cron to perform backups on Linux.org.. it's also my main way into my network from remote locations.