Is there still a market for an affordable character animation program?  Of course there is.  So who makes up this "base" we're talking about?  If it's people buying Poser, only Smith Micro know for sure, and I don't think they've given any numbers.

How do you measure something like this? 

Product sales is not an indication.  Many Poser users are quite content with older versions... 

Merch sales can't be an indication.  Many users by now know how to make their own props and might be using the fitting tools to repurpose items in their collection.  Even figure creation doesn't seem the insurmountable task it once did.

Activity in forums goes up when there is a new release or some groundbraking new figure or plug-in.  We're smack between releases (aside from Poser GD) and most users seem to have their favorite figures, renderers, modeling/sculpting tools etc. Users who may have been posting here are now posting at RDNA, in the Daz forums, or in the Marvelous Designer and zBrus forums...  Or 3D-Coat or iClone forums.

Who is this "base"  Is it the Poser users, or does it include the Daz people who still use or follow Poser developments?  Is it the 3D hobbyist, or the hobbyist who buys things?  The more we learn to do on our own, the less we tend to buy or post questions in forums.  How can something so undefined even be measured?