The only reason I am an Adobe Certified Expert is to be an Adobe Certified Instructor. I have never seen anyone really care whether a photographer or designer is certified or not. The industry cares more about portfolio quality than whether you passed a test. I recommend spending your time learning the apps, perfecting your talents, and making the best portfolio you can. Those will be the most beneficial to your career in my opinion.
Adobe Certified Expert & Instructor at Noble Desktop | Web Developer, Designer, InDesign Scriptor