Oh dont get me wrong, Im not anal about this. I also use RPi as Roon endpoints and leave them switched on - its a PITA to try and dive behind a cabinet to get to the power for that, but when its easy and no hardship to switch something off I will.The Odroid H2+ I linked to above runs Roon Core very nicely and has 10W TDP. I have no qualms about leaving it on 24/7.