probably that it would shift the focus away from what bestPoser does (put people and things together in temples with swords...;)

That being said, you can model with Poser's prmitives. Doc Geep has a goodly number of tutorials (including a 100pps+ 'how to build a house' program). If you want to go that route (even the good Doc has been seen in the Wings forum lately...;)

Any modeling program is going to have to import or export objects; not just Wings. However, once
you've made it into a figure/prop/character, you're done.

There are programs that try to do it all (blend...hrm...;) and have a menu for each to prove it...;) 
Many modern modeling programs can do a lot of the modeling, UVMapping, etc., while you're still in them. As long as you can deal with Poser's scaling.

So you can go either way, depending on how you feel..

I wish I'd said that.. The Staircase Wit

anahl nathrak uth vas betude doth yel dyenvey..;)