Because I see a chance for bitcoin to grow more in the future especially when the digital technology is available in all countries. We will notice there is new technology invented in the future so cryptocurrency will also grow. And this will help bitcoin and other coins to grow fast too. And now, there is many people still hold their bitcoin because they know that bitcoin price can increase in the future and when it rises, it will jump to the very high price and make some people cannot buy one bitcoin because the price will be very high.