Depending on power prices in your country I would take that into strong consideration, while some server or desktop grade hardware might be technically very good, they often have high idle power consumption without offering greater functionality.
Take a look at this German Forum Post: https://www.hardwareluxx.de/community/threads/die-sparsamsten-systeme-30w-idle.1007101
They also have this google sheet: https://goo.gl/z8nt3A
Depending on power prices in your country I would take that into strong consideration, while some server or desktop grade hardware might be technically very good, they often have high idle power consumption without offering greater functionality.
Take a look at this German Forum Post: https://www.hardwareluxx.de/community/threads/die-sparsamsten-systeme-30w-idle.1007101
They also have this google sheet: https://goo.gl/z8nt3A