What is with people Today?

I agree with the calling back issue, as well as the 'not emailing back' issue. I have a 70 Duster up on Craigslist, UsedNanaimo, etc etc, and I get emails all the time about parts. Each person that emails says "I'm REALLLLLY interested, get back to me as soon as possible with more pictures blah blah blah". I go out of my way to get pictures of specified parts, and I don't even get a response after I send the pics. I even email them back once or twice asking, "Hey, you still interested in the parts?" .. Nothing back. F YOU! Just email back saying you're not interested, or you can't afford it!! Gah.