Appraisal - lela-star.com and related

[escuccim]

I own three adult domains:
lela-star.com
clublela.com
clublelastar.com

I have a buyer interested in all three of these. He wants a ballpark range for what I am looking for.

These domains get several hits per day of direct type in traffic (they are not linked to nor advertised anywhere) so I could make some money off of selling advertising on them. If I had the time I might develop and market them myself, but I don't.

Any advice as to what I should ask? The NetSol tool tells me that lela-star is worth about $5,000 and the others are about $500. That seems a bit outrageous though.