Perhaps the most-asked question by folks considering selling their domain is this: "What's my domain worth?"
The Short Answer is this: "Like Advertising, your domain name is worth what the Buyer is willing to pay for it. No more. No less. If you're standing in a room by yourself with no Buyers, that doesn't necessarily mean that your domain name has no value. It simply means that it has no value right now and won't until you locate a Buyer.
Domain valuation is also extremely subjective and dependent on many variables. What is worthless to one Buyer or brand may be perceived as very valuable to another Buyer or brand IF they can see a use for it. If you're looking for a place to start, you might consider ordering a research appraisal.