When the demand is high it will be difficult to obtain also when there's more need of Bitcoin in the financial system it's value will keep increasing making it more challenging to find and it will result to scarcity.
When a lot of people are holding Bitcoin and don't want to release it because it's there investment Bitcoin will become hard to buy because the price will become more high.
Buying Bitcoin and holding it now is very good don't wait because now is the best time.