The truth on the matter is in some major cities of california, there are pot co-ops. To be allowed to use them you have to go to a doctor (there are certain doctor's advertised for it even) and complain of any ailment, say pot works for you and badda-bing you are a "legal" pot smoker.

The pot in the clubs tends to be more expensive then on the street. The advantages are safety (unless you are in there during a raid), quality control and selection. I've heard of herb's costing $200 an 1/8. I like a certain kush that costs $75 an 1/8 and it is worth it. There is cheaper herb, but you can get that on the streets for a much lower price.

There is a nice overflow of pot the that clubs can't hold onto that gets sold to dealers. A bunch of 18 year olds with pot cards is a good thing in my opinion, maybe they won't have to face the bullshit of getting arrested.