I think a lot of the value has to do with not needing to clean up or store the extra batter if you mix it yourself. You just shoot in whatever you need to use a

I think a lot of the value has to do with not needing to clean up or store the extra batter if you mix it yourself. You just shoot in whatever you need to use and the rest is in insta-storage. Disposable everythings are sold by the boatload largely because of no-hassle cleanup which falls under convenience.