ref26 - if you are wanting to sell your BlackBook, then you need to base your price by comparing to the $1099 Apple refurb price.
Put yourself in the position of a potential buyer. With the Apple store you get a one year warranty and BlackBook in the box with all accessories.
Now look at your used laptop and what does it include? You need to adjust your price down to compete.
Having said that I still see people on Craigslist listing old white MacBooks for $1000 and old G4 PowerBooks for $600-700. So you can always list it and see what happens.