Do you see my point? I don't see this being a game to become a fiat millionaire, but a game to get out of crashing fiat. The challenge is to do that with fiat you don't need to live on, money you can afford to be without for a few years. Most people live paycheck to paycheck, buying bitcoins for the future is simply out of the question
There are quite a few options available in that case
The most obvious one is to reinvest your fiat income which remains after your basic needs are satisfied (a home to live in fills the list of basic needs as well) back in crypto (Bitcoin and top altcoins) right at the end of the next dump cycle. I suspect this is what many of us are already doing anyway. If you want to save the accumulated wealth, you should look outside cryptocurrencies. Gold comes instantly to mind, but there are other options less obvious and probably more profitable (gold hasn't been very profitable overall for the last 40 years)