A parking space for how much?
Holy cow this is some expensive real estate! http://www.msnbc.msn.com/id/31314404/ns/business-local_business/
There is a great project in downtown Wilmington called Tanyard Parish and a first of it's kind in that the developer bought the air rights over the parking spaces. I'm not certain what he paid for that but I'm certain it wasn't 300,000 per parking space.
Have a great weekend.