Since we did a supply run up to mum's on the weekend I got a chance to photograph the peeling plastic film on the buttons of her Panasonic. It's a bit hard to see in the photo since it's blurry due to the reflectivity of the plastic and/or crappy cellphone camera, but it's definitely not shipping-protection film.

This wear patterns also shows very effectively where, oh, about 100% of the functionality of the keypad that's used is: Setting the duration, and telling it to start. In other words the same as our dial microwave, but with a far more painful UI.