Reinforcing that trend we now have affiliate programs on the Internet promoting one-price products. There are only three or four good Stair-Step or Group Breakaways that have started, survived, and grown enough to be noticeable in the last five years. They are Royal Body Care, Symmetry, and Starlight. Rexall started longer than 5 years ago. They staggered at first until they dropped the Stair-Step part of their plan and became a Group Volume Breakaway.
Many older companies use a similar basic system today.
They aren't growing. The old giant Shaklee isn't gaining any market share today either. There is strong evidence that companies with older compensation plans may be contracting and losing market share to companies with newer compensation plans. These older companies, rather than face the evidence they have a flaw, are ignoring it. Sadly, most didn't like the compensation plan.