For the past five years, I have a no eating on travel days policy. Not only do I feel like I am avoiding these high costs, my stomach is less active which is great on travel days.
I liked the general idea but found the examples counterproductive. I personally prefer cooking whole foods at home. However, paying $14 for one meal would provide calories needed to live. I do not "need" to touch my phone 32,000 times at 2 cents a piece.
30 years from now I will hopefully retain some my experiential (expensive) travel memories but may not remember/care if I used a value or flagship phone for a given 24 month period.