For me, the old Poser is fine for the types of simple illustrations I do. On occasion they please me and the few people I share them with so what more could I want. On the rare occasions when I want to play with something more ambitious, I fire up Vue, Kerkythea or even my ancient copy of Max 3/Brazil. Poser does a fine job of providing the base figures and then I can learn a bit at a time about things that are not necessarily better or more professional than Poser (the proverbial  needless competition) just different. IMO, it's always good to broaden ones horizons.

"Democracy is a pathetic belief in the collective wisdom of individual ignorance." - H. L. Mencken