There's a huge difference between a luxury and something that indicates you have achieved a lavish and impressive lifestyle. A cup of coffee at starbucks is a luxury.
But yes, your point is valid: it's all relative.
> A cup of coffee are starbucks is a luxury.
In Melbourne, Australia a coffee at Starbucks is considered:
1. A sign that you’re a tourist.
2. A sign that you’re a masochist.
3. A cry for help.
4. All of the above.
Sorry, I couldn’t help myself :)
(I love my Saturday morning Turkish)