My hotel’s WiFi is $9.95 per day, added to your room bill. You purchase it by logging into the network with your room number as the username and the hotel’s name as the password. All of this is explained on the authentication page you encounter as soon as you start trying to use the WiFi.
At first, I thought they might as well have a tipjar at the front desk saying, “If you liked our complementary WiFi, why not why not express your gratitude by leaving us $10?” But then I realized that a tipjar wouldn’t let you add charges to other guests’ bills at will. So really, it’s more like a tipjar for use by pickpockets.