While that is irritating, but I simply don't buy them at $5. That's on us. If we didn't buy chips at that price, they'd drop the price again. They're a luxury good that I can completely go without them and not really miss them.

Coffee is different - thousands of places have independently raised prices. I believe their increases are actually necessary. Cafe workers are getting paid more, and if it turns out my extra 50c a day is mostly going to them, I'll actually be fine with that.

You could argue (rightly) that my coffee is also a luxury, but if I dropped it from my day, it would make a difference to me.