So the dollar's value has increased by roughly a factor of 36700 over those 38 years, averaging 32% per year.
That would be an average yearly inflation of -24%.
Too bad you can't live in DRAM or eat it when you're hungry.
We should be measuring it by the amount of RAM in a typical household PC in 1987 and today.
Even though a "meg" of RAM costs less than 1 cent today, I can't do anything useful with it.
Even if we are generous and buy a whole $1 of RAM today, it only gets us 150 MB of RAM, which, while infinitely more useful than 1MB, is still completely useless for running a modern OS/Browser.
What does your math say about that?
Economics says you're spending newly abundant resources freely in order to conserve those that are still scarce. Economics also predicts that people will adapt to RAM prices doubling by using RAM more frugally, spending more of other resources to compensate.
It's more useful to construct multiple separate inflation measures that represent different types of people. Like a "typical renter" inflation figure vs a "typical homeowner" inflation figure. It wouldn't be hard to do and would shine a light on inequality and help explain the rise of populism in certain segments of society.
An even better measure would somehow appropriately normalize the figure by the average disposable income in each of the segments to come up with a figure that measures the felt impact better.
The figure would be negative for wealthy people (who actually benefit from inflation because of asset price inflation) and positive for poor people (whose disposable income mostly goes to rent).
https://www.yesigiveafig.com/p/part-1-my-life-is-a-lie
I don't exactly agree with the numbers, but I think the basic ideas are true