And since you are bitcoin users/experts,
Bitcoin users? Yes. Experts? I doubt it. Yeah there are still some that remains but this forum used to be filled with members that are experts in bitcoin but things have changed. This forum now is mostly filled ICOs shitcoins, spammers and scammers. But yes, you came to the right place to ask that survey. All of us here have used bitcoin somehow and all of us here must have a reason why we chose to do that.
In my country, many people say that Bitcoin is the best choice for investing, I think the possibility for this coin to grow early is a lot, bitcoin is a kind of currency and has made a lot of money. The rich people in my country, for various reasons, I choose to invest in Bitcoin.