Bitcoin is a future money that has many advantages over ordinary fiat money, And in bitcoin we will easily benefit. because we can make investments, trade, and so forth. Maybe that is one reason why they are still buying Bitcoin until now.
Yeah everyone knows about bitcoin that it happens with bitcoin that it use to increase and decrease which is very common happening, most of people are using bitcoin as they know finally they will end up earning high amount of profit. People is still buying btc its because they know that bitcoin is good potential to their future profit better than workhard in realtime job