The one item I bought and can't actually begin to use properly is one of those apps which takes a face photo and converts it into an OBJ mesh for use as a morph on a figure inside Poser. 

I never got really good results, probably because I'm just not able to get the hang of it.

So yes, that one I did regret somewhat, and I decided against upgrading to the next several versions.  Didn't request for any refund either.  Just figured it was not suitable for my use.  End of my story.

Eternal Hobbyist