Earlier quoted context omitted.
Airbnb has a PE of 22 and is a money printing machine. Airbnb makes 10x the profit of Hyatt, which has a PE of 75. Use case of hotels might be bigger, but it is a highly contended market. Airbnb has a huge chunk of a smaller market. Also, the margins are much better on hosting a website than building hotels and paying thousands of service employees.
On the flip side, Hyatt has billions of dollars of equity in real estate (which appreciates in value while not technically generating a profit), while AirBnB has an online marketplace. Presumably that's part of the PE difference.
Extended Stay America is an exception to this, they own all of their real estate.
Also, unrealized gains in real estate would be priced similarly by investors for both Hyatt and Airbnb, so that would not make a difference to P/E.