Tumblr creator David Karp could afford an ostentatious lifestyle, but chooses one more in-line with the minimalist service that's built him a net worth of more than $200 million. A new profile from Forbes describes the lifestyle of Karp, a man who keeps nearly nothing in his $1.6 million Williamsburg, Brooklyn loft. "I don't have any books. I don't have many clothes," Karp tells Forbes. "It's my Jason Bourne or James Bond fantasy, wanting to be perfectly mobile."