I’ve got 4 Pis in my house right now:

• Octopi server for my 3D printer (Zero 2 W)
• Home Assistant server (400, but this was before I understood how Home Assistant worked and how much I didn’t need easy display access
• This adorable retro thingymabob: www.printables.com/model/…/files (I think on a 4?)
• A nearby flight display thingymabob: github.com/c0wsaysmoo/plane-tracker-rgb-pi (another Zero 2 W)

I’m also looking at making one of these (put a few parts on the Christmas list 😀 ) github.com/fatihak/InkyPi