They decided to spare no expense and instead of paying for just one room at the hotel, they hired a complete suit of rooms. (*) spare (*) expense (*) hired (*) suit
This is a companion discussion topic for the original entry at https://english.best/questions/24584,they-decided-to-uspareu-no-uexpenseu-and-instead-of-paying-for-just-one-room-at-the-hotel-they-uhiredu-a-complete-usuitu-of-rooms/