present bit coins has great demand so try to invest in to that coins. because in the future we have to get more profit from that. generally most of the people investing in to bit coins but few times in that also we have to see up and downs. like that in bit coin also. but in this bit coin also like that up and downs common. but in the future bit coin price going to high. so you try to buy bit coins. seriously if you have bit coin you are the best richest man in the world. currency so many earn but bit coin few people only dare to take. so you try to buy bit coins only.