Hell, it's no different than those people who bought V3 or M3 from DAZ shortly after release, only to find out later that the figure's have been made free.

DAZ made that right, by giving vouchers to people who had paid for the figures.

The people who should really feel cheated would be those new to poser who order the full version for $100 extra.

That would be me, when I first bought Poser.  Poser 5 came out a week later, and the price of Poser 4 dropped $120.  Boy, was I irate.