Bitcoin value may go up and down but still it is already proven and bitcoin has its own standing in the market.And I think all the people who are investing in digital crypto currencies are believing in it and hoping to rise as well.
Your opinion is very good and I like your opinion.
It is true what you are saying is that bitcoin values are up and down but bitcoin ensures itself that bitcoin market always has a high position even though bitcoin price decreases because many people believe bitcoin will rise in price again.
Many people expect that bitcoin prices increase and believe in the presence of bitcoin because bitcoin has important value and benefits in the eyes of many people so they expect bitcoin to grow.