An actor is an impersonator; he plays many different roles. If you played the same role all the time, God that'd be a boring career.
New York's niche is content, and content is becoming more valuable. Just think about what is more valuable: MTV or the cable system that you use to get MTV? Howard Stern or the radio station you use to listen to him? Ultimately, technology becomes a commodity, and content - real, true branded content - becomes more valuable.