Your examples are sobering. The one I always use, silly as it might be, is a comic book. When I was a kid in the 1970s, they were 25 cents. I watched the cover prices tick upwards as I got older...$1.00 in the 1990s was a benchmark, and by the time I left them behind some years back they were nearing $3. From what I understand now they range between $3 and $4.
What has changed? It is still fifteen or sixteen pieces of paper stapled together. There is no added value. The real answer is a devaluation of the currency used to buy it...by over 90%.
The only reason this really doesn’t hurt a lot of people is the government printing press, which is charging EBT cards and funding unemployment and disability checks. When that music stops, Katy bar the door.
I wish I had been born about twenty years earlier.