I get it all the time, it's sorta flattering if you think about it. I mean to me a person has to be pretty gutsy to send an email and ask about a certain game in your collection and they must want it pretty bad if there out stalking the owners. And yes I always respond even though I have no interest in selling. I am selling my Judge Dredd but what with my main computer down I can't send out any pictures so I've not advertised it yet, but if someone is local they can come check it out in person.
John