I've got a Chromebook sitting to the right of my keyboard, and routinely use it as an SSH terminal (that and the keyboard is exactly why I have it). Remote is sufficient, but not always desirable (not just offline, latency can get in the way as well); and crouton and such are kludges vs. having a proper *nix environment within CrOS (not to mention losing verified boot, which I see as a plus overall but glad it can be turned off)