I do not get why people would invest for a quick profit into a casino. If you want to make a quick profit there are other methods that you could do, margin trading, leverages, even small cap coin purchase could still be a good one in few days if you are lucky. However casinos are not the right place for a quick profit if you are an investor, it just doesn't work like that. Sure if you invest now and some super rich person comes in and gambles tens of millions of dollars and lose them all that would work and I would get that, however most of the time we are talking about something that is rarely there, it is usually not like that at all.
Normally the house has an edge which is the profit margin most of the time, and that means you are going to gradually make more and more profit but it is going to take some time for you to get there so you need to be patient about it.
I think it is a bit more about how casinos could give you a quick profit thanks to ups and downs of the gamblers. However the reality is that someone who has absolutely no intention of gambling ever would probably not consider investing into a casino that easily neither, which means the "quick" profit is people who gamble here, and they know how they gamble themselves so they react accordingly.
If you have 10k in investment and 1k for bankrolling your gambling, you know how quickly that 1k can be gone, so that is why you keep that 10k in, so that you could profit people like yourself.
Anyone who has gambled in a high wagered session would know that losing 1k is something simple, it could be done in 1 minute, or could be stretched to 1 year, it all depends on how you gamble but anyone who lost it very quickly would probably know that if it is gone, it is gone and being on the other side is much better.
Thanks. 
