Let's also not forget that around half the people in New York do not pay market rate for their rent. Talking about income and rent in NYC is more complicated than this thread would lead you to believe.
And if you live in a major city, you often have significantly lower transportation costs. Yes rent is high in urban areas, but transportation costs are very low. The two should be added together to compare cost of living between two areas.
Eh?
MTA: $104/month, unlimited
Muni: $74/month, "A" pass
CTA: $100/month, unlimited
You can buy a car for $150/month, and call it another $200 for gas/insurance, so $350 total.
The rent difference is way more than $350/month for an equal size/quality place.
Then consider all the other costs of urban living, like high sales tax:
SF: 8.5%, Auburn: 7.5%
NYC: 8.88%, Westchester: 7.38% (!)
And then if you lose your job, you have no defined transportation expenses. Lose your job and you still owe all of that money for your car payment, insurance and whatever else.
And again, many of us are married. Needing multiple cars, gas, parking for two people (or additional cars for kids stuck in the middle of nowhere) starts to ad up.
Instead of a new car, I could've used my down payment to buy a used car instead.
I think $500, when you factor in all of that, is a fairly modest car.
My wife and I have a Honda Fit that is paid off (I would call this a pretty modest car), and when a car reaches a certain point in its life, you may'll have more maintenance to pay for.
That said, a T-pass is $70/month and most people can pay that pre-tax. Still considerably less than car ownership.
Bike: $0 to maybe 25 per month in maintenance. You don't really need much else.
The point is that you can't take two people's incomes and assume you know what their tax bills will be.