Gotta disagree with you there, Danny boy. Good pot is not that easy to grow at all. You can't just throw the seeds in the ground and smoke what grows. First you need to buy seeds that are actually worth growing- they're not cheap and they're not for sale in this country. Second you need a grow room, or at least a closet lined with reflective paper and high watt bulbs. After the plants start to grow you have to pull out and destroy half of the crop because some will be male which is hemp, and they somehow poison the roots of the the females, which produce the buds. It takes 3-4 months for the plants to be harvest-ready. Therefore to keep yourself high you have to stagger your plants' growth cycles every few weeks.
Sounds like a pain in the butt to me! If I was a stoner and pot was legal I think I'd mosey on down to the 7-11 and just buy a pack of joints instead. If pot was legal you can bet it would be the highest quality possible for sale.
(This is all information I learned from my ex roommate, the huge pot head burnout who started a grow room in our upstairs closet a few years back without my permission. I do not smoke or grow pot, and I never will)