How addictive is marijuana?

It is NOT physically addictive. It can definitely be "mentally" addictive, but I think saying it in those words, specifically using the word "addicitive" is misleading. As others have said, it is something fun, and enjoyable, so you'll want to do it a bunch, especially if you get used to doing it often. Just as you do with anything else that's fun.
As for myself, I'd say that I can be dependent on it at times, but it's something that's really easy to fix- you just have to take a little break, or slow down a bit. It's all about moderation. Actually, I guess I would refer to it more as a habit, than being dependent. I'm just used to smoking every day, so once you're in a pattern ,you tend to want to stay with it unless it causes you problems.

Whatever. I think ya get the point.

 

Depends on the person. Its not that addicting for me. I had to quit smoking to get a job. Its been 2 weeks since I smoked. I still miss getting high though.