An informative data point. To provide some context regarding my earlier comment, a brand new full size memory foam mattress can be had for less than $200 shipped in the continental US. A computer capable of playing modern AAA video games can be had for less than $400. Material luxuries in the modern day are cheap to an almost absurd degree.
I think maybe we need a new CPI metric for HCOL areas that takes the form of a ratio. Something along the lines of midrange laptops per studio apartment month.
I wouldn't call these material luxuries, just like big screen TVs are no longer a luxury. Being able to visit a doctor or a dentist on the other hand...
By "luxury" I mean approximately "anything beyond bare survival". My point is that the vast majority of material possessions have become absurdly cheap by historic standards. However that doesn't preclude severe societal dysfunction (housing, children, retirement, or as you note doctors and dentists).
Thank you for clarifying. It is true that many of such possessions have become incredibly cheap (and therefore affordable) especially when it comes to media consumption and other forms of escapism, but they do very little to address our fundamental needs (physical safety & health, financial security, emotional stability).
True luxuries (not having to worry, not having to waste time) are increasingly out of reach for most people.