CAT-THE-FIFTH
£75 is definitely starting to push into the territory of some of the Atom based mini-ITX motherboards:
https://www.amazon.co.uk/ASRock-J3455B-ITX-2DDR3-M-ITX-Mainboard/dp/B01M7OUO62/ref=sr_1_3?dchild=1&keywords=atom+itx&qid=1590674642&sr=8-3
In the opposite direction, I really wish something like the Pi was available in an ITX form factor, complete with a PCIe slot given most of these chips do have PCIe connectivity even if electrically it was only x2 or x4.
Atom chips leave me quite cold. Not as useful/convenient for media as a cheap Chromecast, not powerful enough for a home NAS once you start putting some virtual machines on there (I'm looking to upgrade to something like a Ryzen 3100 as Jira is a bit laggy on my current Excavator based quad core).
I don't get why the A320 ITX boards are so expensive. You can get uATX A320 boards for about £45, at that sort of price you can put an Athlon 3000G on there and get a very usable 4 thread machine for not much more than the Atom, so that's the direction we went at work for cheap PCs.
But none of these PC boards are things that I would bolt onto the side of my 3D printer to network control it, I use a Pi for that.
In my last job I was only allowed to run Windows on my company laptop, so for a while I was using a Pi 3 as my main desktop machine. I was hitting the 1GB ram limit, one of these would actually have worked rather well.
Edit: I'm aware of the LattePanda board, but they are stupidly expensive. Same Atom CPU & memory spec I think as my daughter's Asus Transformer Windows tablet that hardly gets used as it is too slow.
https://www.amazon.co.uk/LattePanda-2G-32GB-Development-product/dp/B01GJF72DC/