Parking spaces in NYC can cost hundreds of thousands of dollars. As a mere millionaire you can expect to spend 10-20% of your net worth on a parking space.

http://www.nytimes.com/2007/07/12/us/12parking.html?ex=11899...

NY may not be the best place in the world to start your startup, but it will certainly cause you to reevaluate your notion of what it means to be a millionaire. Less valuable, maybe, but also much more achievable.