Mark Birnbaum along with his partner Eugene Remm have pursued their passion of working in the nightlife industry. It's important to pursue all the things that ignite passion because it spurs creativity, interest, and a willingness to keep going.
Without passion Mark Birnbaum wouldn't have continue through the ups and downs of doing business in New York City. It's a highly competitive place and the passion allowed Mark Birnbaum to make the most of the opportunities.
Passion allowed Mark Birnbaum and Eugene Remm to succeed with EMM Group. It has propelled them forward.
As Bruce Kasanoff writes here:
People are smart about the things that are of most interest to them. Malcolm Gladwell argues that "genius" starts with an intense love of something, which translates to the ability to spend immense amounts of time achieving mastery of that area.