How about the "science" of a survey?
Really? Came from a survey of real people... Heard of anything called "statistical sampling"? I know that may be a hard term, but I'm pretty sure that even PMPs should be aware of the concept.
You have a voluntary survey of people who may or may not show up, and may or may not tell the truth since nothing is verified.
I could put in that I have a CCNA and earn $325,0000 a year. Kinda skews things, ya think? They may throw out "obvious" ones like that, but it doesn't take much to skew the statistics either way.
I'll go with the other approach. And good CCIE was likely too busy working to bother filling out the survey. I know I was last year.
So if someone wants to take a REAL survey and REALLY set the statistics up to be realistic and VERIFIED then perhaps I'll believe it. In the meantime, given many of the PMPs I happen to know...
I'd say SOMEONE is way over-paying for something that shouldn't be that difficult is plan is well developed. (e.g. poor planning = more management)
Just my two cents.
Scott