I don’t think it is possible that such thing is going to happen. You know that there are lots of bitcoins circulating and people are making use of it for transaction every day, so I don’t think there will be a time where we run out of bitcoins to buy or use. As these big private investors and institutions continues to invest their money in Bitcoin and buying Bitcoin in huge amounts, the price of Bitcoin is going to continue to increase in value and then it’s price in Satoshi will continue to also increase in value (that's the fraction of Bitcoin). And as this continues, that means there will be more available for people to buy, although I do understand that everybody wants to own one Bitcoin , but it is not a must that you will own one Bitcoin, because you can buy in fractions.