No one ever bought anything in an elevator

I just absolutely love Seth Godin.  The title of this post is in fact a rip off of Seth's post. In that post he says "the purpose of an elevator pitch is to describe a situation or solution so compelling that the person you're with wants to hear more even after the elevator ride is over."

Now let me ask you a question ... what can you say about your business, what situations or solutions do you have that are so compelling someone will want to know more?

What can you say that will make someone in an elevator with you want to hold the door while they ask you for your card, your mobile number, or something like that?