Bitcoin provides different types of opportunity of earning money. you can trade, investment or lending, some are doing bitcoin mining so it has been proven as a income source 
we can not ensure the bitcoin price increases at this time. Bitcoin prices will always change. But if you look at this time then we can see the development of bitcoin is much better. Various positive news impacts the bitcoin price increase. bitcoin is the advancement of the digital era and will last until there is a new concept that could be better than bitcoin.