That was cool of Yamaha to pay for the labor even though the keyboard was out of warranty.
I had one warranty issue that came up after I owned the keyboard (and played it heavily) for almost two years. Because I paid for the board with Mastercard, they extended the parts part of the warranty from 12 months to 24 months. So I was reimbursed for a $350 part and only had to pay the $85 labor.
Always have a backup if you are a serious musician.
And yeah, the S900 and S700 are not built like tanks. They are a good value though.
Beakybird