If you buy a bitcoin in the price of 9000$, yes it may drop, but we have clearly seen that this is what it does. It goes up and down. If you have 1 million dollars and buy 100BTC (900.000$) then the only thing you have to do is wait. Because someday it will pass that number and you will have profit. Am I wrong?
You aren't wrong, I will also choose to buy bitcoin and wait. Some people bought some bitcoins and forgot about it, they became rich after a long time. People are afraid because they are trading day or short term investments, the margin is quite large and they only see risk.