I wouldn't say that any of these are bad based on TechCrunch; I mean more that there were something like 3 products that sell machines that sell food, and there's a chance in 10 years we'll say "there was no way that a food-machine product could have become a large business". And regardless of how hard they all work, I don't think it's possible that there will be 3 different "billion-dollar businesses" here.