Salt and Vinegar rant.

Lately my biggest weakness towards eating calories I don't need has been salt and vinegar chips. I buy a steady supply at Freah n Easy, Trader Joes's and Cost Plus.  Recently I found myself at Big lot's.  They usually do not sell any brand of salt and vinegar  chips.  Today they had 5 different types.  (Sweet) Then I read the ingredients and every single one of them contained milk.  WTF,  Why?  So I started looking at ingredients on other packages and flavors and none of them contained dairy unless they were  cheese flavored.    I don't get it.  In protest I will not eat any salt and vinegar chips for at least the next 20 minutes.