Clearly the multimillionaire thing did not work out, but since they had quite a lot of money and doubled it (not to mention the stuff they get due to their promotion work and lifestyle), it worked out for them. I do not approve of their initial decision to sell everything for BTC, though, given that they have three children (they're responsible for the well-being of the kids and it was too risky in this respect). I'm also not sure if the kids are fine with travelling for three years straight. How are they getting their education? Are they socializing with their peers? Can they even have friends and build relationships living like this? So even this story is not necessarily a success story to me. If they were just two adults, I'd be totally fine with that, but they have kids, and it should be taken into account.