"Nothing says "Rustic, home grown food" like enormous biome altering glass dome."
Biodomes are the tenth Potato industry. They require 200 B Crop Dusters (and therefore 200 B Comrades) to unlock, and cost 1 BB Crop Dusters, 1 VVV Potatoes, and 1 Comrade. This will require at least a x10 M discount, a x131,072 luck power, and a x4096 power on Potatoes to feasibly afford. Even then, it can take days to afford a second one after unlocking them.