I think the disagreement I have is that I think part of the reason calculators are allowed on calculus tests is because they're actually not that useful for a lot of what they teach you in calculus. I had a graphing calculator in my math and physics classes in high school, but most of my work was still done with a pen and paper. The calculator was of course useful for the arithmetic stuff, and it could be useful to sanity-check your work (e.g. to see if the roots you calculated were correct), but I still had to do most of the actual calculus by hand.
Even when I got a calculator with a CAS built in (HP 50G), I would still have to do most of the algebra by hand, and honestly if my teachers had known that my calculator had a CAS I suspect they wouldn't have allowed me to use it to begin with.
Only if you missed mine about how it is no longer cheating to use one.