credit to u/shittyretrocomps on reddit. https://www.reddit.com/r/iiiiiiitttttttttttt/comments/1jyacoo/have_you_ever_tried_to_make_toast_but_your/
Also, read this: https://arstechnica.com/gaming/2020/01/unauthorized-bread-a-near-future-tale-of-refugees-and-sinister-iot-appliances/
I think that even if it cost three times a "normal" appliance's price, people would buy the more durable one. Less waste and more satisfaction.