Growing ? Very difficult and many are trying to get into it and failing
Land price in Colorado has tripled - so typical business space you'd need to commercially grow indoors would beb$300,90 for starters , then you have diff stages of plants - seedlings:clones, vegetative state, and flower
You need spectate light for each and each has diff light cycles and timing as well , don't forget temperature control , humidity , then you have nutrients and filtered water - typical flowering cycles are 8-12 weeks it's not some rinky dink hippie op you can just wing like most try to
This just goes for growing this beautiful plant - money from penny stocks would be in ancillaries like extraction equipment for concentrates or vacuum ovens or commercial candy equipment
Growing is a science just like getting big is