It's much better to invest than to gamble, though the idea and process are somehow the same. But, for investing this is suitable for long term plans also much advisable to do. Why? In gambling, most likely can make your money disappear in an instant w/o you noticing it. Yes, we can say that in gambling you could easily win and that's the truth but what if you can't control your gambling normally you'll end getting broke.
I definitely agree, there is a very thin line that separates Gambling from investing and there are a few factors that will help one make the right choice.
If a person turns out to be a compulsive gambler gambling is a no go area for them because they will lose all their money guaranteed and on the other hand investing in the wrong project would be costly as you lose money in this scenario unless research and hype shows signs of a viable project . Investing is a naturally a better choice over gambling
But, in investing you have all the controls over your investment which is a big advantage since you can easily pull it out whenever you want.
Not all investments offer this kind of control and long-term investments are not guaranteed to reward good money as they are a 50/50 business venture