Same as growing and raising your own food. Tastes better, you value it more and it puts you back in touch with nature.
Contrary to the schill borg labeling me an anti-grow, pro-LP, a cop, one of a bunch of some other people who they don't like, etc, I am firmly planted in the everyone should be able to grow their own stuff camp. But I also know that some people don't want to grow, whether they suck at growing or whatever reason, and need to source it from somewhere. People shouldn't be looked down upon because they don't grow and decided to choose one of the legal options available to them.