All the thermostats are good enough and all the circulation is good enough. these are both established, mature technologies that are available at commodified pr

All the thermostats are good enough and all the circulation is good enough. these are both established, mature technologies that are available at commodified prices. The non-food quality factors still allow for some degree of differentiation but they turn out to be not huge in practice. At the end of the day, price reigns supreme and it's a commodity market.