I have no idea what they are worth. Searching turned up some on eBay for $2500
Anyone out there able to give me an idea what they "normally" sell for
Grab them now before they are gone- they are the more desirable HP-1.
If you're not interested, hook me up with the seller!
$1,500+ seems to be the going price as long as it has the ultra bandwidth cable. So, assuming it has that cable and is by someone trustworthy, jump on it.
The cable did affect the price on HP1000 in the past.
It is harder to tell these days since the prices have gone up overall. HP1 usually goes for more and HP3 even more, although they really don't have any sonic advantage over HP2 ( not to my ears at least).