As we are all writing on our smartphones or laptops... I remember 1971ish, when SDSU Biology department just got their own minicomputer. 32k words of memory, when you turned it on, you had to load a bootstrap program via front panel switches. Mass storage as I recall was a tape drive and the cost? $100,000 About the cost of five or six very nice So. California homes! Now we have computers more powerful than sprinkled all over our cars, the breaking system, ignition, etc. And our phones would have been called supercomputers back then.
Later in the later 70s, working at UCSD, I remember racking up a more than $8000 computer bill for one month! on a computer where, because I was a heavy user, I had a whole megabyte of disk space!
I remember in the 1990s calling New York for 25 cents a minute. Now of course it is virtually free to call anywhere in the world.
And remember in the 1970s too, when we were supposed to be running out of oil and food by the turn of the century? World hunger was going to be the ruin of us, and now we have a worldwide obesity crisis.
When we look at what most of us depend on and spend much of our time with nowadays, has the price really increased? There is so much deflation caused by technological improvements, no only in phone calls, computers, but in better medical care, internet, international travel, etc. sticking to the CPI really misses the point of the qualitative improvements in our lives.
Maybe I am optimist (okay, I am an optimist), but if I am lucky enough to live another couple of decades I expect to have much more "real to me" purchasing power than I did in the past, due to technology and qualitative improvements.