Maybe the most interesting part of this is that two V3 variants are also topping 2009's most-recycled list, so they're definitely getting taken out of circulation -- it just might take a few years yet before you don't know anyone that uses one, that's all.
How timely, in a bad sort of way, for the central message I wanted to leave you with, which is this: We don't fully know the answer to your question yet.