for me holding btc is just like investing btc holding btc would be good if you have patience , if you have alot of btc you can earn alot of profit because the unstable price of bitcoin. investing your btc on gambling site would be good too it just like holding btc or investing on a cloud mining site.
You are right nowadays if someone will like to find a way for a faster income.e source then they have to invest in Bitcoin only and do not have to invest in any other way or scheme as the faster profit nowadays is from Bitcoin only.
The best way you can invest your bitcoin is to be smart in your earning.
But some people tend to be greedy and look for a fast earning so they jump into gambling so they lose their money, so it is a very bad idea, trading on the other hand is less risky and has so much potential to make you some good profit.
I have the same idea with you, I don't think gambling will brings people wealthy or at least profit. I mean, you can lose all off your money if you just want to make money fast by those number. Because, I don't talk about system cheating, I'm talking about your chance, even you're lucky guy, your chance to win always 99% and ofcouse, another 1% is enough for you to throw your money through the window. Trading, on the other hand, I very interested with this because you get less risky and you can use your knowledge to avoid losing in investing.