I agree that most people love gimmicks that provide no real benefit, so the tech will most likely become popular. Regarding you using cash and card. Card adds a lot of convenience and security over cash, so you can make a strong use case for it. The coffee machine doesn't offer any of that. A Nespresso machine takes seconds to turn on and make a coffee, so by turning it on with your mobile adds no extra convenience, as you still have to go up to the machine and get the cup to drink. Heck it will take you longer to turn on with your mobile then to just press the physical button. Aircon might have some small convenience (house is cool/warn when you get home), but it's not performing any back and forwards communication to save money or work better. When you're on your way home you just set it to turn on, nothing more is happening. Also since most people have predictable working times, you can just set the timer and don't even need to have it connected to the net. So the benefits to most people are minimal. Regarding all those other IOTA examples I'm not even going to waste time commenting on them. It reminds me of those cities of the future examples back 60+ years ago. It's a nice story and nothing more. Plus most of those examples are not new. "Paying toll fees automatically" we already have those systems in place. (well in NSW we do) Anyway I'm still happy for someone to provide one strong benefit from an IOTA like system that people will realistically adopt.