Why don't "factory farms or large scale farms" use Khaki Campbell ducks? (Since they lay more than Chickens) Are they more expensive to feed? Require a different diet? Don't produce well when caged? Does law require them to have water to swim in? Are people afraid to try duck eggs so the factory farms don't want to try it? Farmers receive no subsidies or contract / initial set up of factory farms don't exist with ducks? (Hope you can understand what I meant by that.) What do you think?