Inflation is a measure of change in overall purchasing power.

What a specific purchase costs is highly dependant on the inputs, the cost of its labour (which might grow faster or slower than the average wage), and a lot of other factors.

Food is way more expensive today than it was 50 years ago. Airplane tickets are way cheaper. Everyone has a cellphone now, and middle class families have multiple cars, but a trip to the doctor will mean that ~15% of the population will be on the verge of not paying their bills. On the other hand, I have access to ~every major piece of music ever made for ~$15/month, so that's something.