Thanks for the replies.  Lots of things to think about.

Gary, I think you might be right about the decline of the desktop being a factor.  IRL, I am an engineer.  I am on a desktop all day, and so are all my coworkers.

But a surprising number of them use their smartphones as their main computer outside of work.  Especially the younger ones.  They often have laptops and desktops at home, but they never turn them on.  They prefer to do everything on their smartphones or tablets. 

I imagine that might cut down on the number of people who might check out Poser or DS out of casual interest.  (That was me, once.)