I haven't bought a PX-5s yet because I can't stand the blue/white motif and I'm hoping the next model Casio comes out with will be a different color and finish. I have also noted that most of the criticism I have read of the PX-5s in magazine reviews is with the plastic finish. I'm not looking to start a debate about the finish of the current PX-5s - it is what it is. But as I've gone to music stores in my area, I've noticed that the PX-5s units that are on display look terrible, especially around the power button. Obviously people with grimey hands are responsible, but the flat white plastic finish of the PX-5s seems to really show dirt easily. My current DP's are black and easily cleaned with a microfiber cloth, so what are you PX-5s owners using to clean your keyboard, especially around the power button and sliders?