My simple question is what webservice/website can you built using the domain?
Google results for a couple of keywords do not matter at all, many people have that wrong calculation in their mind.....it simple doesn't makes and logical calculation.....
On the better side you could have booked BrokersAndDealers[dot]org along with it as that would have been more brandable, while you/(end user you sell to) could have used the BrokersDealers[dot]org for SEO campaign and BrokersAndDealers[dot]org as the prime website.
Although developing a website on the given topic OR find an end user for the given domain will be a tough call.
You can get low $xxx to max $300 from an end user.