@eonflux The impact on the hydro (electric) bill isn't actually all that much. It's less than a $20 monthly difference.
There's only ONE server, and that one's in the furnace room, but can only hold an OS drive, plus a single add on drive. The second one is also in the basement, but in a room I'm using as an office. It's actually setup as a workstation that I use for doing my business work. It just so happens that there's a bunch of spare hard drive bays in that machine, so there's currently TWO add ons (both of which are huge), plus the OS drive. The third one is in my bedroom, and it too is used as a workstation of a sort. It is connected to the TV in my bedroom so that I can do things I can't do with a fire stick alone. That one though is mostly used using Remote Desktop, but is there so that in cases where my laptop is not in my bedroom and actively connected to everything, I still have a way of streaming porn on the TV haha.
Also, the tower that's in my bedroom is also only capable of handling an OS drive, plus ONE additional drive. I know I could use external drives, but my experience with external drives (especially when using them for torrent traffic) has been less than ideal, and I've found that using them as internal drives is way better for a few reasons.