It is literally the chicken and the egg discussion. Build popular rides and then crowds overwhelm you. So, you build more rides to handle the crowds and get more crowds as a result. However, there should be a balancing point that would effectively mitigate the crowds versus rides. To me, the more difficult issue is how to funnel the crowds because, as I have stated before, the park isn't laid out in a way to handle the amount of crowds that it could see. So, they almost have to look at the park layout and figure out how to fix chokepoints and dead ends.