If the technology advances enough (which it will do in time) there will be commercial products. They may not be as powerful as the commercial ones but that's no different than any other industry. I can buy a personal computer that's a lot less powerful than ones some companies are sticking in their data center racks, but it's good enough for what I need. I'm not rich enough to own a private jet, but I could still buy one even though it's not capable of hauling as many people as a 747. If I wanted a simple personal aircraft, that is something I could already afford and kit aircraft don't cost much more than a car. Once upon a time electricity and indoor plumbing weren't something that common folks could afford, but now they're ubiquitous in the western world. All technology goes through similar stages. If quantum computers are at all useful to people, someone will make a business out of supplying that demand. It may be fifty years or more away, but in time it will happen if there's a demand for it. Any bet I'd feel confident making is so far into the future that I wouldn't be alive to collect even if I won. Out of curiosity what kind of odds would you offer for commercially available quantum computing by the end of 2036?