Tough word "lucrative". Low search. Maybe a good affiliate vendor site? By itself, I agree with estibot range at around $400 to right person. Good luck with the name. Cheers
Lucrative is not a word that most people use in their everyday lives, though most are aware of the word. I think this is what holds the value of the domain name way back...
Just as an example NameBio only reports one sale with the word lucrative, all time.