mine is pretty filthy. I gave it a woody spit bath a few weeks ago, but I'm afraid to push too hard on it to clean with the materials at hand (spit and newspaper!) so there's smudges, and everytime I wipe the dust off, there's more :}

incidentally, I turned the monitor brightness up to full and I about keeled over at how easy it was to see everything. But I have to run the fan 2x as fast to keep it cool