The idea that we can't be "rich" with bitcoin comes from the idea that you want to be rich very quickly. Because we all know that if things go the way it has gone always, then in 30 years you are going to be rich if you keep investing into it. However, we are seeing things change a bit, and because of that a lot of people doubt what could happen. I would highly suggest keeping things as it is right now, because if you rush into things then you are not going to be happy. You can be rich with bitcoin, or at least we hope so, because if it goes like this for decades, then why wouldn't you become wealthy?