the reason why gambling is so addictive is because we believe we can out smart the system(house) or we get to carried away from our first win or loss and want to win back what is ours and it becomes a cycle.
I do not agree with your first statement, but I agree with your second statement. We can become addicted to gambling even though we do not know anything about the House. Very probably addicted because I think it does play a role in making people become addicted. But for the second your statement, it was probably the most influential factor in making people become addicted. We got win in the beginning, and will try to play again because we wanted to win again, and when lost, we will try to take back the money we lost.