Yes this is also my theory that gambling is for entertainment only. Though it depends on funds also. But if you have more funds, I will suggest you go for leagues. Otherwise, if you are not a gambler then use it for experience and entertainment. I mostly use it in my free time when I used it to get relaxation with the brain.
If your theory about gambling is for entertainment, you should end your gambling time when you already got the entertain in gambling because if you don't stop, you can spend more money. That will happens too if you have more funds, and you will use that funds to playing gambling longer than usual. We should treat gambling as an entertaining way and get relaxation in our busy days, and maybe we need to have a limit of time that will remind us to stop playing gambling.