Tony Hsieh, CEO of of online clothing maker Zappos.com, passes the "Welcome to downtown L …

Tony Hsieh, CEO of of online clothing maker Zappos.com, passes the "Welcome to downtown L ...

Tony Hsieh, CEO of of online clothing maker Zappos.com, passes the "Welcome to downtown Las Vegas" sign on Las Vegas Boulevard during Big Bus downtown tour Tuesday, Sept. 4, 2012. (Jeff Scheid/Las Vegas Review-Journal)