I have this domain name with me from last 1 and half year, WWW.WEBSITE-PLANNER.COM, can be used by website design, development, SEO ( freelancer) and hosting provider.
If it is undeveloped mid $xx Develop it and you could get mid $xxx Like suzybakeoven said the hyphen makes it a bit less valuable, but develop it and you could get a fiar price for it
I agree with the above posts... probably mid $xx if it's undeveloped... BUT, get some PR, traffic, decent design, repeat traffic, and I don't think mid $xxx would be too unreasonable..
It's not worth anything. As long as websiteplanner.com is for sale and on the market, yours holds no value. I would drop it, unless you were going to develop it, or, see what the price is for that one, and put it on sale for less to undercut him. JMO