Bitcoin is valuable by the faith of people that it will continue to develop and its price will raise in the future.
When people will lose interest in Btc, it will lose its value, price will decrease as liquidity will become lower and lower.
I think the interest of people will continue to grow, although I understand what you mean, there must always be something that will spark the fire of interest in people, and the more people use it, the more that bitcoin will become valuable. When people will lose interest in Btc, it will lose its value, price will decrease as liquidity will become lower and lower.
Awareness is also something that is very important, and I am sure that if we are to come up with statistic of people that has gotten to know of bitcoin now among the entire population of the world, the statistic will still be a little bit too low, so there is also need for us to create massive awareness, and one of the greatest way that we can create awareness is when most of us starts to also adopt its usage, I mean we are all making use of it as merchants to receive payment, if the merchant base that accept bitcoin can grow, then people will start getting to know about it and beginning to use it for bitcoin to continue to be valuable.
