The classification of these goods is also confusing. For example, I drive a Lexus IS250 AWD which would be considered a luxury vehicle but actually comes in at the same price point as Toyota 4Runner.
Additionally, the variance in prices between luxury and non-luxury goods is decreasing. A low-end Lexus now costs less than $10k more than a similarly equipped Subaru Outback or Honda Accord, making the difference when it comes to actual affordability pretty small.