As Gary said, I used the 2000 to the extreme, MUCH longer than I normally keep a keyboard. And after that it found a new home in California and is performing to this day, some four years after it's "birth".
Hank The Lurker abused his 2000 in ways almost unimaginable. It had at least two full drinks poured into it, cigarette burns, bounced around, left uncovered. It looks so bad that he didn't even try to sell it after getting the 3000. But it still works just as it did when new.
The 2100, which I had for several months after selling the 2000, seems to be essentially the same unit with some software upgrades.
The Tyros that I have now has performed flawlessly since I rescued it from Uncle Dave's forceful fingers.
I had a PSR8000 for several years, sold it, rebought it as a backup, and finally took it to the Mexican border where it was transported deep into Mexico to a new home with a full time musician there. It's still working fine last I heard, it must be close to 10 years old now.
DonM

[This message has been edited by DonM (edited 10-10-2004).]