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One thing that we are all familiar with is the psychology that the gambling industry has evaluated to keep their customer to gamble by using the so-called "hooks". These hooks are something that will make people sit for long hours while making their gambling experience more enjoyable and enticing to make a lot of money.
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First of all, we are people, not "fishes"! For me, it's simple, as a human we can choose what we wish to do with our time/energy/money! You can't fall under influence of something that you don't like! And if you like something, you will be interested in learning more about it, you will practice it... it's something I find normal! Do you like to paint or play dices it's your own business, for both you need money/time/energy/knowledge/many other things that can help you to be better than others!
Gambling or any other industry will try to keep their customers happy and satisfied if they wish to grow! The ones who are more creative, who are ready to go that "extra" mile for their business will have more success!!! You have many examples of that... if you are selling something you can't have just one product, sooner or later the market will be saturated, you need to develop other interesting stuff, you need to expand your offer or you will look at how others are doing that while you falling down!