A complaint about the increments, I have 100 cannabis plants, in real life, because of seeds, I wouldn't pay anything for more plants, and I understand it's a game and it's gonna cost money, BUT $288,610 IS A LITTLE MUCH FOR A LITERAL WEED IN A POT. (and yes, cannabis is a weed, hence the name)
to dev: Instead of adding the purchasing multiple quantities of drug producers at a time, maybe make it so you can hold the purchase button down, and it will buy 1 at a time, but it will keep going.