[infinite8s]

Have you noticed that the price of natural peanut butter is almost 2 times that of the sugar-adulterated peanut butter?

[emidln]

I wonder if this is purely price discrimination or if requiring more peanuts means the cost is actually higher (relative to using HFCS).

[VLM]

Nut quality. Try eating a bitter rancid old peanut alone and then smothered in corn syrup.

The more sugar you add, the lower quality/cheaper of a nut you can use.

[magic_beans]

It depends on the season. Prices of natural peanut butter (by natural peanut butter I mean the only ingredients are peanuts and salt) are really cheap right now in September ($3.60 for me). But by February they can get up to $8.00 a jar.