A lot of that is because of the hardware that supported Snow Leopard that wasn't supported in Lion. I'm one of those. Contrary to popular belief, no not all and probably most Mac users do not replace their MacBooks every year or two. I will be using Snow Leopard until the hardware I have completely dies.

Hear, hear. I have just recently donated (to a friend) a fully functional (and very fast) early '06 Mac Mini with an SSD upgrade running 10.6.

6 years has been kind to that machine, with minimal upgrades (RAM 3 years ago, SSD and 10.6 last year).

That is a bit disingenuous, as the article this comes from (http://insights.chitika.com/2012/mountain-lion-roars-capture...) claims Mountain Lion looks like it will do much better than Lion.

For more fun, let's look at the adoption numbers of Jelly Belly or whatever the Android crowd calls it these days. Let's not even open the can of worms that is Windows adoption rates.

...in this case, poor adoption is useful.