There is still balance for both casinos, the new and the old ones. Relatively, there are more that's failing and going out of business and don't even go to near to their popularity because they have a lot of failures like in marketing, budgeting and security of their casino.
A business that has no customers is likely to go out of business as soon as possible, they are running an online business and an actual business so they pay not actually for high rewards but for the cost and maintenance upon building it.
When we do talk about business then its just normal to have those expenses when it comes from maintenance down to staffs and others.If you do ran off without making much that of profits then its normal
that you would really be negative which would result into non-feasible or sustainable thing to continue further.So its wise to completely stuff rather than tending to run the business in deep debts.
Success will vary on each one because as a business owner, nothing is assured when it comes on succeeding.
In op's example then its really understandable that the previous site will really compensate out the new ones credibility but to think that building up trust into that first site
does really take long time and wont really be that easy.