I love it when stores have peanut butter machines! In Texas most larger HEB's, Krogers and all Whole Foods have them. But when I lived in Cali I practically lived off of Trader Joes PB crunchy and smooth.
If you can't find any unsweetened/salted PB in the store try making your own! Buy a bag of roasted peanuts and throw them in a food processor for a few minutes. I"ve gotten away from nut butters but when I was having them I liked doing this. Some recipies on the internet call for oil, but honestly the peanuts are so oily already you can just throw peanuts in.
Could probably throw in a little cocoa powder and make chocolate PB. Just an idea!