Well it is a short and easy to remember domain I think it has alot of potential and if I were you I would hang onto it and develope it right now I wouldn't pay more than $200 but if it were developed correctly maybe Mid X,XXX
I'm pretty sure he means to take it, put some content up, do some link exchanges, and get it rolling..once it has steady traffic and good content you will get much more for it. hope this helps