Earlier quoted context omitted.
I never understood why ChromeOS existed in the first place. To me, it would make much more sense if these devices ran Android. After all, there's no apps for ChromeOS -- other than glorified Chrome extensions, and it's not easy for developers to create ChromeOS apps (whereas if I could recycle my Android app, life would be good). Arc welder doesn't seem to work very well either. Analogously, Apple only has iOS. There…
Because it's the perfect Enterprise OS for companies, schools and other organizations that have moved to the web. Currently there's just no OS that would rival ease of deployment for large scale thin clients. Android on the other hand has very limited provisioning tools and even iOS/OS X is orders of magnitude more expensive and harder to provision, keep updated and running.
It would be orders of magnitude more cost efficient to just create those tools, compared to creating an entire new operating system.