Sean-
I had to replace the keybed in a Clavinova about six years ago. I had been told this should be expected every so often depending on frequency and manner of use.
I bought a P-200 about five years ago and never had a problem with it whatsoever.
My Tyros is about 8 months old, knock wood, I've had no problems with it.
Bill in Dayton
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Bill in Dayton