You will become addictive once you experienced the so-called "beginner's luck" or early big-win. But then after that, you will try to re-coup what you have lost and ended up an addict.
I don't believe that beginners luck happens. When I tried gambling, I have no luck. I do but overall, it's negative profit. I lost my Bitcoins with it. It's sad. It could be more addictive if you always win. In the long run, you will probably lose.