Well, at best this sort of thing is tacky and it cheapens the park experience.
At worse, it eliminates another venue of escape the ever increasing corporate culture that dominates our worldview. We are constantly bombarded with advertising at every turn. Corporate sponsorship; product tie-ins, it's all part of the game. The never ending cycle of buy and consume.
Sure, the parks have the freedom to seek sponsorship but I want freedom from the pervasive commercialization. As parks gradually transform themselves into giant interactive commercials, I will gradually seek alternate means to spend my free time. It is hardly a benign issue and it is something to be concerned about.
As far as chain restaurants in parks goes, what's the point? Is the fear of the unfamiliar really so bad that we need everything to look and feel like every suburban corporate main street?
Commercialization quickly leads to homogenization and it won't be long before these parks lose their character, their individuality and their regional identity. But what does that matter? The economy isn't designed to care about such trivial matters.
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everything's better with a banjo