To me, an Omnikey 101 with clean white Alps switches is a great find. This is one of my favorite boards. It has a superior typing feel and sound, and the construction is uncommonly solid.
I offered $120 for the board on the eBay link and was turned down. At one time he had lowered the price by about $20, but I see that it is back to the original price, which I think is too high, even if it does appear to be in excellent condition. I've had 3 of these, and the one that had the best switches was only $50. You can get these boards from "Northgate Bob" for a bit less -- even one that is hand-picked to be in excellent condition.