The way i figure is, if you make a profit and have a steady flow of domain names, with possibly better domains ligned up, take the offer and invest it into that perfect drop. $500 is good money for this domain, take it.
$500 for this name is a good offer. Just take it . It is possible that by demanding a higher amount you may lose this offer. Unless you have couple of more offers , do not take a chance.
Thanks Again Guys
RJ You had change to make better offer, but You did offer something like this other guy, You also did not wan`t pay more than $500. Anyway I am happy.