I haven't bought potato chips for a while. I used to buy them only when on 1/2 price special and they were $1.60 per 200g pack long ago (Smith if I remember correctly). I don't know how much are they now because they are not on special for a long time.
https://www.woolworths.com.au/shop/productdetails/826730/smi…
I used to buy Pepsi 2L when on 1/2 price special for $1.60 bottle. Coles and Woolworth dropped the original price and 1/2 specials are gone. I have not drunk Pepsi / Coke since.
https://www.woolworths.com.au/shop/productdetails/38433/peps…
I use to buy Cole / Woolworth brand 5 pack instant noodle for $1.00 to accompany other brand instant noodles. They are $2.00 now.
https://www.woolworths.com.au/shop/productdetails/521257/cho…
I guess these decisions potentially make my diet more healthy?
Depends what you're replacing it with.