Unfortunately, I entered this exciting bitcoin world quite late and by now it is not so easy to purchase as many bitcoins as it was at the beginning.
However I am hoping that we are still at the beginning of this new era and bitcoin still has a lot to grow, so I will continue to accumulate the few bitcoins I can save while the price is still relatively accesible, even though perhaps only early adopters will have an enviable wealth that I will never be able to reach.
Seeing all the changes that happened to bitcoin by the OP's analysis, we will sure have a lot more to expect from bitcoin in the future. I also got into bitcoin a bit late, I learned about bitcoin on 2016 and just started doing it in the mid-2017. I'm also hoping that we are still not too late in the world of bitcoin as there will be a lot more great opportunities in this era.