It's called Washbox, and it's a locker in the atrium of my apartment building. I drop my clothes off, text the locker number to the company, and my clothes will be returned clean the next day. It is, in fact, both super useful and cheap.
I'm sure they would love to automate their washing & folding process further, but those implementation details are already well abstracted from me as the end user. If I were interested in automating laundry, it seems smarter to start by targeting industrial use by existing laundry services who will be willing to pay more per unit and put up with more quirks than a home user would.