I hope you know that it's not easy to buy a portfolio and it usually take time and lots of patience and consistency. Gambling to grow ones portfolio used to take time and good and experienced gamblers around that can help in making good decision that could make us lucky and able to make good profits from betting. For me, I think making good money from bets is majorly luck and strategy.
But many of them cannot be patient and consistent because they are tempted by the many offers given to them. This makes them more and more often deposit large amounts of money and continue to play until the money runs out and repeat it at another time. But indeed, luck and strategies can help us get a lot of money in gambling but unfortunately, not many of us can get it instead of losing a lot of money without us knowing it. And even though we use small money to play gambling, if we can't control ourselves, the result will be the same, we can spend a lot of money playing gambling and suffer losses.