I have been a psych nurse for 3 years, right out of nursing school. I am pursuing certification mainly because I want to increase my knowledge. Psych was barely taught in my nursing school, and sure, I have picked up some knowledge along the way, but as I have worked through some Continuing Ed, I realize how much I don't know. Getting my certification will not impress my clients, might slightly impress any future employers, but it will make me a better psych nurse! That makes it worth it.