the economy is bad, nobody has money to spend on a used or new HD
nobody wants to spend $10K on a used HD that gets 20 mpg, when they can buy a fuel efficient Japanese bike for less than 1/2 that price
credit is tight, no bank is going to loan money for a used, over-priced HD.
what-ever price you are asking for it, you're going to have a hard time selling it.
New HD sales are down 30%
Japenese scooters and dual sport bikes sales are up 27%