Okay, thanks for the input, I can try to make it less gimmicky. You and I may know that but I don't want to assume everybody does and yet I want them to understand what something is without a science lesson.
It's definitely not a complicated idea, but it will cost about $300 to buy all the individual ingredients and I don't expect somebody interested in trying it would want to buy a 12 pack of plates, a large container of yeast extract or agar... Even if you can get some in smaller containers, I'm just trying to make it more convenient and cheaper for people.
Again, thanks a lot for your opinions!