Chromebooks are perfect, and it's unfortunate that the open source community remains in denial, still clutching their moribund "Linux Desktop" instead of stealing ChromeOS and putting a solid distro directly under it.
The open source user interface is, was, and always will be the web page.
Desktop Linux is another attempt to ape monolithic corporate desktops. And most of the people using Desktop Linux just have a web browser (and maybe an xterm) maximized on it all day anyway.