I can't think of anything more profitable at the moment. Although I don't know in depth the income from online casinos.
However, to create an online casino, you need a lot of investment and be willing to pay for advertising and interact in a forum like this.
I don't intend to have an online casino, I'm more interested in having an e-commerce.
One of the factors that makes me believe this is that there is already a whole audience ready to play in casinos, as they are generally people who bet out of addiction, to make money (or even when they lose, they play just to pass the time). In addition to the fact that there are costs for servers, employees, online attendants, programmers and other costs, unlike physical casinos where the costs are for installations, maintenance, energy and employees and security guards...
Do they make more profit than digital banks, CEX exchanges, etc.?
Trying to compare out on different industries on how much revenue they are making then this is something that cant be known since there would really be no showcasing about on how much they do earn on which this is something that private or as an owner then you wont really be tending to declare it out publicly but one things for sure that earnings of those gambling platforms or companies would really be that huge but of course it would really be just that depending on how known or popular they are because the more gamblers or players that they do have then the more money or profits that they could make and this is something that a basic thing to consider.
So what are the reasons on trying out to know their differences when it comes to earning or revenue of these businesses? Different markets/services would really be catering out different sets of people
on which their function would really be that different too. Doesnt matter on how much or big that they are making but one things for sure that they are really that indeed making serious money
and its not really that a shocking reality.