Personally I'm not disappointed as I wanted to buy Bitcoin, but didn't (lucky for me) because just as I wanted to do it this huge drop occured. If it keeps dropping then perhaps I'll buy it, because I'm sure that Bitcoin sooner or later will rise again. Myself, I feel sorry for my father, who bought it for 10k USD. It's not like his decision was bad, buying Bitcoins is a good idea, but must be done in the right timing. Imagine how lucky is the person who bought it when it was extremely cheap many many years ago, and then suddenly began to rise. There are numerous cases how ordinary people became millionares thanks to this investment.