Yes it is even though that begin doesnt have a fix value but it is a part of our life now. we never know before that this bitcoin will be very popular. but look bitcoin now it has a big value. bitcoin started from unknown and a small value but then now look how big the value of bitcoin. I know for the future it will goes up up and up...so we dont need to worry about because in the future we will gain more profit from bitcoin. it is clear from a small value to a big value. so for me it is safe to haven.