I'll be 45 on 02/02 and I have been with Carrara since version 2 Of Ray Dream Studio came out way back when, (or was it 3, I keep forgetting).  Anyways, I have seen it evolve through it's many incarnations as Ray Dream Studio, right up to the very polished product it now is.  I don't look at it as a render engine for Poser content.  I see Poser content as a way to avoid having to go through the hassle of designing humanoid figures in Carrara.  I stink at anthro figures, so if I want to add a character to one of my renders, I use a Poser figure.  I will also sometimes use Poser content if I need some small element, like a lamp way in the background as a secondary element in the composition.  It's a huge time saver when you need peripheral components like that.  I would much rather stay purely with Carrara content but I don't want to spend hours or days creating one scene element which isn't that important.

That being said, I think the concept of the Carrara Lounge is great and I really hope it takes off.  I know that I will be one of the first sellers to put up some items when it opens it's store.  I will also be posting all of my future renders there.  Keep up the work GK!