It would be rather stupid to invest all of your money into bitcoin although doesn't mean it wont be a wise investment in the long run.
I don't think that anybody, any financial guru can predict what will happen with bTC in a year, two, 5 years etc.
It can be great financial investment or great financial lost.
Can anybody be sure about this?
I don't think so.
so, my advice to everybody is to follow this golden rule. Invest money you can afford to loose only.