Why not? As a prospective job candidate or as a employee seeking promotion, how long do you want to be making excuses for not having the CAPM or PMP certifications? Besides, you might not even get the opportunity to explain your strengths and experiences if the prospective employer or manager is filtering candidates based on having or not having certification.
Most employee compensation surveys report that certified project managers enjoy significantly higher salaries compared to their uncertified counterparts.
And if you are working for the US government, a contractor, or a company that is nationally competitive, you will find PMP certification increasingly in demand. While it has been important for years, especially in the US Department of Defense, in December 2016 the US Senate unanimously approved the Program Management Improvement and Accountability Act, which calls for enhance accountability and best practices in project and program management throughout the entire federal government. This means, as a practical matter, that the value of PMP certification, of the professional development and achievement it represents, will increase.