This article is from the Digital Pianos FAQ, by Isako Hoshino rmmpfaq@yahoo.com with numerous contributions by others.
Nobody really seems to know the answer to this. This is akin to
asking how often does a new car or a stereo component breaks down.
There are many people who have had the digital pianos for 10+ years
with absolutely no problem, and there are people who ended up with a
"lemon" which needed frequent repairs soon after the purchase (within
the warranty period).
 
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