multi level marketing schemes

What has Amway, Vita whatever, email chain letters with recipes or prayers, emails that end with "you must pass this on to ten of your friends or you'll contract a venereal disease", jewelry parties, and the new face book phenomenon "25 things about me", have in common? I will answer that for you, what they all have in common is that if you wait long enough all your friends will have contacted you about them. Which can be bad or good. I like some of the Amway products so if I wait long enough someone will approach me and I can buy what I need. I don't care for forwards just on principle so they go into the auto delete file most of the time. I have sold about every party plan out there for extra money and its usually a good product as well, but I dont go to them simply because. I got a real nice invite to write down 25 things about me. I am thinking about what I should write. It will take some mulling over and just about the time I think I will actually complete that lil survey, which is cute by the way, someone else tags me and Im it again. Now Im feeling very popular. so decisions, decisions, do I do this one or that one or both. More thinking when BAM! I get another one. Then I read the instructions, I would have to send the survey to 25 people. Ok now I get it. I am figuring that if I wait a few more days even weeks I might get a whole bunch of those invites and then I can just do them all in one shot. My real question is how long it might take to reach everybody on the planet with this thing. I think I asked the same question to an Amway person. Man if we were marketing something wed be in business.