I'm in CA and discussed it with my doc at one point. The big negs for me were: cost, not interested in smoking since I'm prone to asthma, concerns about federal legalities since I'm receiving SSDI, issues with needing breakthrough meds--awkward in public.

If someone grew their own and didn't travel outside CA at all, it would be a more viable option.

And the pain contract issue, and regularly being tested certainly complicates things.