It isn't the land that I mostly care aboot, it's the things I have on it. Me home, me cars, me family, me life. And raising the amount of snakes it would take to get enough of the medical components of the venom would be an enormous cost. The scientists themselves don't even raise them in captivity. They catch them in the wild, milk the venom, and then release them to where they belong. In the wild. They don't have to feed them, clean up the cages, or other things such as that which would be expensive, and raise the cost of the venom, and therefore the medicine. And the snakes don't do much harm, and they do more good. Being able to stop breast cancer from spreading and growing could save thousands of lives. And these components are so complex that we aren't able to create them in the lab yet, and if we did, it would be expensive and in small quantities, too small to be of use.