I think it's more that the concessionaires are trying to sell what they think people want to buy, but they're worried about stuff going bad in the heat.
From the OP link:
Smoked turkey legs emerged as the fair's rare success story albeit at a shocking price point. Troy Warren and his son from Missouri told the Post they paid more than $20 for a single turkey leg and then offered, "The tenderness of the turkey on the inside is very good.
Then there were the losers.
Chocolate chip cookie ($4): "Anyone, and everyone, involved in this baking travesty should be impeached. The cookie is minuscule. The dough is nondescript. And the chocolate chips are few and far between," the Post reporters noted.
A bacon, egg and cheese foot-long pretzel roll ($12), was described as an "oily vehicle" for an "incredibly salty payload," with scrambled egg that "barely registered" and "undercooked bacon."
Teriyaki chicken with steamed rice and Asian slaw ($16) got the worst review, with the Post reporters stating it was "virtually inedible," adding it was a "bland interpretation of a dish that usually coats the featured protein in a sweet, savory and deeply satisfying glaze."
It sounds awful, and I feel bad for these tourists who spent a lot to attend this fiasco of a "fair."