I'm no marketing expert. But I'd think the majority of those who have an extra $20k to splash on a home robot are not the type of people who want to buy a prototype for hacking.
Maybe not the majority, but I think that "early engineers at every Internet startup ever who made it big and want to tinker with a house robot" might be a big enough market to sell a couple of these things. These don't need to be in everyone last person's hands, like smartphones are, in order to be a success.
Plus, if you want to use the stereotype that rich people who can drop $20k on random crap don't do things for themselves, why wouldn't the rich person's tech team buy one on their employers dime?
