bitcoin becomes very expensive one of them is due to the limited amount of currency, in addition to his many ads in various social media that tells that bitcoin will be a global currency is a factor that makes bitcoin very expensive
Basically, its prices are going up due to high demand and less supply. More and more businesses start accepting bitcoins for regular usage then its demand will go up but supply may not increase so fast so its prices will shot higher. The current prices may be looks expensive for now but after two or three years these prices may look very cheap so start investing in it instead of worrying about whether it is expensive or not.
because the bitcoins has many users and investors.bitcoin becomes very expensive one of them is due to the limited amount of currency.amount of people who are bitcoin users is more than amount of bitcoin in the world..