It's a hobby that makes me $102,000 ish a year. (actually more if you include the company car and benefits)
I design and install the real stuff and program homes and even freaking hospitals with Lutron,Vantage, Crestron and AMX control systems. using real sensors and systems to do some amazing stuff. A major hospital in michigan has my code running the lighting on all 12 floors using sensors on the roof and each room, hallway, etc and floor for light harvesting and lighting control. I even adjust the color kenetics RGB accent lighting based on the current weather conditions outside.
Hell the last home theater I did cost more than 90% of the people posting here will make in 10 years. The very rich and corperations all use the real stuff extensively. The consumer items are exactly what you called them, Toys for someone's hobby.