For what it's worth: I keep my computers / servers off all the time. When I need them I use Wake-On-Lan to remotely turn them on when needed.

Even my power hungry 71TB NAS is off 99% of the time and only turned on when needed. Saving me 150-200 Watt idle power usage.

If you don't need your stuff to be on 24/7 you can buy older more power-hungry stuff as long as you turn it off when done.