Bitcoin has been unbelievable expensive price because of the highly profitable platform. people are becoming dependent on this system day by day for the purpose of making a profit. That's why the price of Bitcoin is getting high nowadays.
people are getting expectation because in past people have already got a very good profit, therefore still people are expecting that they will even now get a very good profit from bitcoin investment. i think that they are right because still bitcoin price is trading in a low price and there are more chances that its price will increase too much in near future.