No updates? No thanks…
Before buying an older Chromebook, look at when it reaches end of life for ChromeOS updates:
Lenovo ThinkPad X131e reached end of life a year ago, June 2018
If you’re looking to use a cheap chromebook after it’s no longer getting updates, and you’re technically inclined, check out GalliumOS, a Linux distro designed for chromebooks:
https://galliumos.org/
Or look in the specs where we stated this. 
I can see it indeed is. In the future, maybe a bit more prominent placement? If the features page is going to talk about how great and easy ChromeOS is, maybe a note that it’s End of Life already, or this month, somewhere besides a separate tab below the fold?
Features page:
Chrome OS takes the stress out of updates and anti-virus software. With automatic updates you’ll always have the latest software.
Specs Page:
Chrome OS Auto-Update Expiration Date: June 2018
Very good point. I’ll ask the computer team to remove or revise that paragraph.
Yep. Personally didn’t notice when I bought mine. Thankfully it’s supported for another year.