What is special about hotel vending machines besides their convenience?

Despite the development momentum of competitive products, take hotel vending machine machines as an example. Most of the existing hotel vending machine machines in the market are set up for the convenience of customers. Considering the hotel itself, investment in hotel vending machine machines only needs to focus on a few core elements: Is the product synchronized with the market? Are there any hazards such as flicker, quality, returns, etc? If so, are the later impacts controllable? Is the customer safety index high enough? If the above requirements can be met, it is basically a stable investment project.