Your plot is very interesting, and I appreciate the possible insights. I would be fascinated, however, by a comparison to the age distribution of forum participants in general. Hope you are still a participant in this one!
What's your profession? Age?
Just thought after the "how much is your system worth" post that it would be nice to see what all these people do to get $80K systems, and perhaps how long it takes. I'm a 29-year old economist for the gov., just completeed my Ph.D. last month, and my system is at about $10K. Just a pup hoping to keep upgrading...