Every time an MLM thread starts up on here, I can't help but jump in. My SIL is constantly going to training seminars (often FLYING to get there), and posting on facebook about all the amazing, inspirational people she's meeting. I'm sure at this point she's spent well over $10k on training seminars and products (her MLM is a travel program, so she'd argue that when she flies to seminars, she's really making money for herself), and earned less than $500. The only thing she's getting out of it is inspiration that she can be as successful as she wants to be, which I don't know, I guess is worth something? She goes on and on about how her potential income is limitless and she doesn't have to answer to a boss. I'm not the biggest fan of my boss, but I'll deal with him if it means I can take home my stable almost-six-figures income.
The worst part is that the "deals" her company offers are rarely better than what you can find on any other site, and the pricing is designed to be confusing. For instance, they'll sell vacation packages on a per person basis, including the hotel room, making it really difficult to figure out how much you're paying for each individual component of the package so you can compare it to other sites.
But she sees it as getting paid to travel, so her family now goes on a ridiculous number of crazy expensive vacations. Meanwhile her poor husband is slaving away at his actual job to fund their stupidity.