In the US I have seen it only once: from people who got them free from Google I/O. But they still sell a lot of these devices. The target market are people who just need a browser or for schools.

Go read some sysadmin posts about Chromebooks, they are highly loved by schools. They are cheap, interchangeable between students with little issue (since it is all cloud based), and have great admin tools when you have a fleet of them.