No room in my cube for a microwave. And even if I had an office, I think we have power restrictions in our building that limit the number of appliances we can have plugged in our offices.
I am strongly considering buying a Keurig, though.
Your cube must be tiny, since my 'wave is not much bigger than a few big books stacked up.
The mini fridge sits under the desk.
As far as the power restrictions...we used to have those in the college dorm, we called those "guidelines" rather than "rules".