I've never been one big on junk food. Given my preference I would take home made baked goods over something produced en-mass in a factory any day. While I will occasionally munch on potato chips it's usually at a party instead of because I bought some myself. So I wasn't particularly invested in finding a cheap yet healthy alternative. But I did and figured I would pass it on to you.
Simple yet tasty. Just grab a bunch of Kale, put it on a cookie sheet with parchment paper. Drizzle with some olive oil and sprinkle with salt. Bake for 10 minutes at 350. Eat while warm.
Seriously, I think I prefer these over potato chips, not to mention that they're healthier and cost less.
Kale (enough to make the same amount as a large bag of potato chips) - $2.00 (or less if you grow it yourself.)
Chips - $3.50
Difference is $1.50 or 43% less.