Quote - Look at P9/PP2012 for example,
we already have excellent alternative render engine for poser (Vue/LUX)
so any firefly improvement offers little incentive to upgrade.

I must disagree. I have neither the money for Vue nor the time to fiddle with Lux. Firefly is what I depend on. I suspect I am far nearer the average Poser user in this stance than you might imagine.

For all that has been touted about multiple program workflow, I'm willing to bet that Poser users do "everything" in Poser by at least 100 to 1. Can't prove it, but would be interested to see some research in this area.

Power users are just that: Power users. By definition they are rare.