Our life is short. So there's no need to waste time on things we don't like. If you think that the site bets are not made correctly or you just don't understand how it works, it's easier to leave than to find out for a long time whether they work correctly or not.
People do some crazy things in life and others think about experimenting things on new platforms they see that's why there are others who like to visit in some new site since there are few people believe on beginners luck beliefs. But if the budget is limited and cannot afford to lose more faster maybe you are right to leave on the things we don't know since by their we can avoid such unnecessary losses which the new site offers which confuse us.
Maybe I am getting older. This is why I am becoming more and more conservative. If I like sites where I already play, I will never go looking for new sites for gambling. Even if they will offer very large bonuses. Why waste time getting used to the interface, to check user feedback about a gambling site, if you were satisfied with everything on previous sites?