Bitcoin was supposed to be used as a currency, not only a form of investment. However, it's been more successful as a form of investment, a "speculative asset".
Do you guys think that this can change in the long term ?
I do not think bitcoin failed as its construction or worth. It is doing its job well. In the long run, I have not seen any discrepancies to its function, therefore it simply provide service very well. And as soon as it will keep its lead as a currency pn track, therefore, it will be as great as it could be in the next years.