My only two complaints:

If I buy Poser 8 it will not be 64 bit.  That is exclusively a pro feature, but I would like it a lot if it were not.  To me, this makes regularly upgrading Poser seem less than ideal.

If I buy Poser Pro I have to pay the premium price and still wait while certain features are only available to upgraded Poser users.  To me, this makes regularly upgrading Poser Pro seem less than ideal.

It feels like they are staggering the releases and hoping a percentage of users will feel compelled to buy both.  When you decide to buy a pro version you don't expect to ever be tempted by the regular one again.