Luxury goods are built on a foundation of waste. Using the center cut. Extra effort, often unseen. More space, more resources, more energy than is needed.
The front lawn is a luxury good, a sign that you don't need to graze your cows on every square inch, and that you're willing to waste the lawn. And the few bits of leather good enough to go into that luxury handbag sends a message about your ability to walk away from all the other parts of the hide.
There's a new luxury that's occurring, though, one that's based on efficiency. Saving you time, sure, but also the time and resources of the creator. A luxury that's based on investing in renewables, in resources that might be seen as endless, in smart design, in the satisfaction of knowing that others are benefitting, not paying, for the experience or the object you're buying.