Why not? Because $15.00 per hour in NYC is like making $7.00 an hour over here, or $4.50 an hour in Alabama. The cost of living varies greatly across our country.
If you ever watch HGTV sometime, check out what you get for your money when you buy a home. In the NE states, homes over there that cost $850,000 are comparable to homes over here for less than $250,000. Same thing in California.
Years ago I rented an apartment to a lady from Buffalo. She was sending her kid to school here, and because he was young and didn't have a job, I told her I could only rent the apartment to her since he was not financially stable enough to put an apartment in his name.
At the time, I was charging in the area of $500.00 a month give or take depending on what unit one wanted. Her son told me he had relatives that lived in NYC that he visited all the time. He said if I could magically lift my property, place it on the outskirts of NYC, my apartments would easily go for $1,800 a month and I would have a waiting list to boot.