These plans are not necessarily simple. Front-end money doesn't come from selling products above the absolute minimum cost that all distributors pay. Some used a break-away on the back end or a hybrid of it. Others used other new hybrid modifications providing depth payouts on the back end to promote their growth. They do all have one thing in common.
New distributors buy at the best wholesale price from the day they join.
With the economic devastation in Asia it has been hard to tell the effect there.