The study may be full of beans, but I would point out a couple things:

- The average age here is highly skewed by the fact that mainly the computer-savvy participate regularly in forums on the internet, and most of those folks are younger. I.e. many of the 55+ folks aren't going to be spending much of their time online like us.

- I seem to see TONS of 55+ folks driving Priuses around here. They vastly, as a group, outnumber any other age range I could identify.

But those are just my observations from here where I live.