Where I live, any rental building from this century will be marketed as luxury. There is in fact absolutely nothing luxury about them. Everything is cheap and crummy, just not too dirty/smelly/with rats (yet). Rents are 5-7k for a 2b and being luxury or having amenities have nothing to do with this. Supply and demand do. There are enough people who make this kind of money and value living in a place that is half-decent + easily commutable to the city more than the 6k.