Value of experience!
Along the same line ... the difference between CAPM and PMP in the survey was a mere $600 (0.6%). In the real world, the biggest difference between CAPM and PMP is that PMP also requires a minimum of 4500 hours actively leading projects, vs 0 for CAPM. Only $600 more for someone with 2 years full-time experience in running projects vs someone with 24 hours in the classroom .... ??!!!!!