Inclusion and summary, Why don't we have this mentality towards bitcoin and know its the latest Generation that has came to stay which through bitcoin we had a blockchain that featured all forms of technologies in the world, and yet you think one day bitcoin price will fail you? My dear this is No to my answer because those who witnessed those 1 to 3 Generations of computer aren't there again so in essence why not buy bitcoin and hold and think of 20 years to come and more, if only we can centered our heart with the progression of computer then we would patient enough not to talk about price of bitcoin at this present moments.
So please bring down your tension and feel free with bitcoin since there are more things to explore with this current Technology.
People have fear about the failing of bitcoin because they you don't know anything about it and if they realize the fact they will regret to not invest earlier. I think people get accepted bitcoin if they see the success of others who have put money in Bitcoin so people always inspires with the success of others.
I think as you give brief discussion about the past and present technologies so I think that all those new technologies which will arises in future will get the position of past technologies so we can say that may be in future something new will originate to occupy the space and will be stronger enough to be acceptable by everyone.
Bitcoin is good opportunity but its up to the decision of a person that which way he prefer more to earn money because everyone knows his position better than us.