Hi Bill, my 14mz is 10-year old but still works great. It was purchased in 2008. The original screen had lost its touch sensitivity over time. In 2012, Futaba Japan changed the touchscreen to a more sensitive one. This would make the current screen that I have about 6 years old. The touch sensitivity is still good but there is some kind of polymeric crazing happening now. Could be a bad batch? I observed this deterioration in the touch screen over the last couple years. The radio goes through normal use and normal storage, and I keep it clean from contamination. As you can see from the front bezel in the photo, it is in great shape still, apart from the touch screen. The TFT display itself is OK. I have the glass touch panel from 0Gravity on the way.
Therefore, I would like to find out if the 18mz uses a plastic or glass touch panel? I think glass touch panel will be much more lasting, as used in mobile devices.