There is more info than you noticed.
If you look closely, you'll see that most resorts listed have the starting (lowest asking) prices listed for various types of units. Although it's not what we are used to seeing at some online sites, it's not unusual for real estate (e.g., "condos starting at $...."), auto and other advertising. Even timeshares are often advertised this way in other mediums (e.g., in Hilton Head newspaper advertising).