Well, Poser is getting used for more mainstream work these days. I've seen it used to create cover art and article illustrations for magazines like The Scientific American and BBC Focus (and got myself DAZ vouchers for both of them).  No playing there - someone got paid well for those images. The Scientifc American in particular is well known for it's very high standards in it's artwork, if Poser can be used to produce images good enough for them, it's earned it's status as professional tool. Of course, it always has been one - but it's harder to deny it with those new credentials.