Didn't MA basically decriminalize small amounts by eliminating any penalties including fines for possession of under an ounce years ago? Of course they can still throw your ass in the clink and fine you $5K for having a pipe or growing a plant, and marijuana, vehicles, and money are still subject to forfeiture...
http://norml.org/laws/item/massachusetts-penalties-2
This is true and was a big concern for me, but I don't believe the police have abused this law by arresting anyone for a bong when the weed they were smoking in it is not an arrestable offence. I'm pretty sure they just stopped caring here. Thats how it is around me. Even if that did happen, any half decent lawyer would set precedent for the state that the law protecting marijuana should cover the pipes etc. The pipes are only illegal because they might be used to smoke marijuana, which is now not a crime. It is a minor civil offense. The $100 ticket for possession these days is 100% unenforced. If you don't pay, nothing ever happens. The cops know this and don't write tickets in my area.
Growing a plant I think is still a pretty big deal for a non-patient, but I'd imagine its more like probation for 6 months no actual jail time. The state is very relaxed about cannabis here it seems like. The only strict laws that I can think of are a part of the medical program. The thing that sucks about those strict laws, is that the people didn't vote on them. The DPH just declared them illegally, and that is how it is. The 1 patient per caregiver? The voters didn't establish that. It wasn't in any law. The DPH is just making up rules as they go along, being relatively unchallenged.
All I know is that the black market weed grown by my patient friends is going to be better than most/all dispensary weed, and it'll guaranteed be cheaper. I don't particularly care if it is legal or not, the second I leave their house I'm simply possessing it, which is 100% fine with my medical card.