My tablet comment was just meant to give context to why I don't think having access to Android apps on Chromebooks is a game changer in K-5 education.

Probably the higher up you get the less students are using "educational software" and more just common productivity programs and I'd suspect the gap between platforms fades away there for general purpose reports, presentations, etc.

Some people claim Chromebooks already have the best education software (as in learning stuff, handing in reports and teachers grading them online, not playing games).

Given that advanced CAD software nowadays run inside a browser, I think the chromebooks will work just fine even the higher up you go.