Today, real-estate agencies are only one of the parties that take pictures of real-estate for sale or rent, therefore, the race to get clients' attention is even larger. In addition to each description, you must pay detailed attention to the pictures attached, since it is hardly possible to successfully conclude a real-estate business without it.
Unless you are going for the ultimate and most expensive smart home setup, you don't need to spend all your monthly income on buying lots of components, sensors, smart bulbs, security cameras, etc., since for most users, it would be overkill anyway.