Common Sense is right on target. MLM is always a scam; some are legal and some illegal but scams either way.
It s not a scam, it is a legit MLM. I personally don t believe it is good though. I have not tried them, because I don t beleive it to be a good opportunity. It is possible to make money in any legit MLM as long as you follow the system in place, but some are much tougher than others. I believe Market America to be one of the tough ones for a number of reasons. I know several people who are with Market America, but don t know any who are really having any success with it. There are many better, easier and more profitable MLMs out there.
Good MLM are extremely rare.