It is human nature. Imagine this scenario. You call or text one of your close friends. He or she answers and you tell them you have something huge to tell them, and you can't wait to share it with them. Before you tell them, suddenly something comes up, and you tell them you'll have to explain later and hang up. It won't be two seconds before that person refuses to go until you share with them. When things are made too available or too easy, the value decreases.
Another form of the take away approach is by literally taking away your product or opportunity from a person. This type of marketing is only successful when used with the right personality type, the type of person who will not let people decide for them email list. Let's say you have a person you are speaking with about your business opportunity who seems interested, yet seems to be somewhat of a maverick.
Maybe you could consider this individual a "big fish" however, they don't seem to want to cooperate with your process. Rather than chasing and convincing this person, you respectfully let them know despite their strengths, they may not be your ideal candidate. If you tell a big shot, they may not make the team, what do think their response will be? "Hold on, what did you just say?"