Hi Peter,
Welcome to Basschat.
1stly I doubt anything is wrong with your sales thread. The 2nd bass market is very slow at the moment and there are amazing instruments that have been for sale here, in Bass Direct, the Bass Gallery, eBay for months with no takers. Some even over a year. It's a sign of the times and if you want a quick sale then you need to give it away I'm afraid.
As for value - it's worth whatever someone will pay for it, though it's worth noting that many of us are precious about our gear and given you have a large dink on the front of the bass you have to be prepared for that to put a large percentage off.
2ndly Basschat is quite community focused and new members can often have a hard time integrating - especially if the first thing they do is sell something. It is a know fact that some people won't deal with guys who sign up and sell stuff with no community input. Like buying something expensive from an eBay member with zero feedback - lots of people just don't do it. We also have a feedback section here and it does get used. It may help to stick around a bit and contribute to discussions around the forum. I'm not saying it WILL help, but in my experience it does make a difference!
After all we are not a sales site. The sales forums are a free-to-use added extra to a bass discussion forum, which we hope all members will use more than the sales sections (it doesn't always quite work out that way though!).
Hope you find the place useful!
Shep