next big thing my arse...
For every next big thing, there must be good reasons for it. However, proponents for MLM can't make the argument convincing. Ok, some are still logical, but the majority are crapz.
You may have better luck investing in tech stocks now, since the bubble era is over...
At least for tech being the next big thing, there are good reasons for it(just look at how the internet has made transactions and information transfer easier, faster and cheaper), just that people were TOO OPTIMISTIC about its future and its growth, and of course, the mother of all business stupidities - herd mentality.
When people tell you to be different by joining MLM and how it's about to be the next big thing, and you buy it just like that without deeper reasoning, you are essentially having a herd mentaility...
That said, I'm not totally dismissing MLM implying it can't work.