As long as we keep on investing on Bitcoin. And trusting our funds to it, bitcoin will never end. Bitcoin stays atop because we still believe and supporting on it. Once we draw our backs from bitcoin, then it will probably shutdown.
We as the user and investor of bitcoin, it is in our hands on how we are going to keep this for a lifetime, and since we are million of people using bitcoin nowadays I think that it will never end, after seeing its best and worst part still we are here supporting this kind of innovation.
That is true - the innovation of bitcoin and the rise of other cryptocurrencies is really worth the investment because it could be the future and it is slowly happening now - look at kodak, who was the leader in the camera film industry decades ago and loses its profitability in the advent of digital cameras, is now launching its own crypto still the same in the photography industry.
We can really look where this is heading - the future!