yes in this sense it is a fun no doubt about it, but there will be more fun if you will make money from gambling. I think that people only get fun while they are making money, either they will make in physical casino or from online gambling sites.
It is not fun trust me. Losing money because you fell for your greed is not something that gives entertainment to anybody. People think that it is fun because its gives then a rush but the rush soon ends with a roller coaster ride of ups and down and ultimately its a net loss for the gambler. Making money is only for those who either end up getting very lucky of manage to hack the site and steal the money. 
yes that is not the same chase. I think gambling gives us hope for every time and that is the reason it compel us to play gambling again and again. But if you will watch a movie again and again it will surely make bore.
Thats why gambling can make a person addicted to it. But talking about movies there are some movies which are classic and have a replay value while others are one-time-disposable ones.