Agreed with most of the points in the video, but for me locally most BM is about £6/g, typically £160-180 an ounce - so medical is generally much more expensive.
I can go see the plants, I know what medium they're grown in etc. - so I think the whole 'medical vs. BM' debate often comes down to how good your local/internet plugs are.
I also find I use much more via medical than I do BM, my medical maximum per month is currently 120g, with BM I often get away with 2oz/56g. In general my medical usage varies between about 80-110g per month via medical dependent on simply how fresh or dead the flower is I receive.
I want to stay legal, but on cost alone I really should go straight back to the black market.