To the OP:
The going rate for Worldmark points on the resale market is 0.30/credit so your 6000 account is worth $1800 (depending on specifics). Many timeshares have to be given away, but Worldmark is one of the few that still has value; don't sell yourself short.
There is a forum of and by Worldmark owners at
www.wmowners.com/forum that can help you out with your options. They also have participants who are resale dealers if you prefer not to sell them yourself.
Here's the link to the section on memberships for sale:
http://www.wmowners.com/forum/viewforum.php?f=71 Scroll down to check out what others have sold their accounts for.
Here's the link to a thread where members review transactions with others:
http://www.wmowners.com/forum/viewtopic.php?f=72&t=16837
Sue