$30K is not very much when you consider that a parking space in a dense urban area can charge $300-$400 a month, even while competing with free street parking.

$30K is not very much when you consider that a parking space in a dense urban area can charge $300-$400 a month, even while competing with free street parking. At $300, that's $3600 a year, or about a 12% return on your investment just from the cash flow alone (and the value of the space will rise over time as well.) Double digit returns on a relatively low-risk investment aren't exactly bad.