They don't all have nothing that isn't required. My toaster runs Android, has a touch screen, WiFi and an app, and a camera for the AI to identify what you put in it and so you can watch a live stream of your toast or play back recordings from the cloud. It was a pre-order in 2015 that didn't ship for two years. Unfortunately they sold out to Weber a couple of years ago and the product has been discontinued, much to the disappointment of the few remaining loyal fans.

I hoped that was the kind of toaster OP wanted to make, but despite what I wrote above, this is not a disagreement with anything you said. I think people have mostly come to their senses (or have just run out of disposable income) these days and I suspect the market for $1500 smart toasters, if it ever existed, has dried up.