A price inflation measure like CPI is a summary statistic, so it does not capture the underlying dispersion of costs as various people experience them. It is true that imported, mass-manufactured goods remain cheap, such as TV’s. At the same time, domestic resources like housing, health care, and education are difficult for many to afford. It turns out those things are vital to a good life, more so than TV’s.
A monetary supply inflation measure like M1 shows a remarkable rise since 2008. The central bank added lots of money by financing the US government debt, and that has indirectly bid up financial assets, VC, etc. If you owned US financial assets over the last decade you are flush; if you didn’t you are wondering why important things in life are so expensive.