I used to think this as well. Now, I'm not sure anymore. My hill has a park that, for the most part, sucks the big one. At this point, I'm not even sure if it's worth the effort. It doesn't help that the market the shit out of it. The inbounds terrain at the hill is some of the most fun lift accessed terrain around, so that helps a lot for forming the mentality that no park may be better than a bad park.
Really, it all comes down to the fact that I hate when marketing departments lie.