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 ?
For now, I agree. It is more than investment, than a currency. But we can change that as well. If those guys above us will make some laws to regulate and handle blockchain normelly, we will have the Bitcoin currency.