Depends. Lots of people are building quickie sites and throwing them up for sale at Flippa, sometimes on domains I wouldn't even take for free.
People buying sites there, care more about the traffic and revenue.
For example, url shortners these days are a dime-a-dozen, and there's no point creating one unless you have a really really short domain name.
Hard to say what you should do without knowing the domain name. Think about how much you paid for the domain, and what your expectations are for a sale. Is it worth your time and effort, or is it something you are going to drop anyways?