I prefer to play on a casino known as reputable one as they won't ruin their image just because of small amount of money.
For a new casino, it would take time to gain their credibility as high rollers won't just spend money on a new one.
But as long as they have no existing scam accusation, I believe they have the chance to gain their loyal patrons.
They should also take a look on how to entice new players into their platform as they need to gain the trust of the gambling community.
If as a gambler you can establish your judgement based on that understanding of taking the time let's say those casinos that have already spent at least 2 to 3 years in the building and establishing a reputation won't run away with your money when you play on them since they have a long-standing reputation to guide at that point.