Although I am a pot smoker, I disagree that the only problem is the illegality. My biggest issue with it is that it is not a controlled substance. Unless you grow your own, you can't have a whole lot of confidence that what you're getting isn't tainted in any way, or how much you need. Consequently, if one is using it to self-medicate (rather than just recreate), then I would recommend NOT smoking pot but rather talk to your doctor. Or get a medical marijuana licence ;-)