With these kinds of really cheap devices, it always makes me wonder whether you are not better off buying older used hardware instead... especially if you are looking for a cheap linux laptop.

For example, some time ago I got a Thinkpad X200 tablet in good condition off ebay for that price. I was mainly interested in the tablet functionality, but it's a nice little laptop that is still usable today.

Even if you are specifically interested in Chrome OS, Chrome OS Flex might be an option on used hardware.