Hotels have to deal with a lot of different people who want a lot of different temperatures. Your house only has you (unless you ans your spouse/roommate fight over the thermostat, but that’s a different question). Empty rooms don’t get much AC in them, and the system has to respond quickly when you check in. As a result they need to make a large swing in temperature in a small space (your room).
Your house needs to keep a uniform temperature in a large space. As a result it can be much more energy efficient, and thus less expensive to operate.
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