In response to the several questions raised above:
On the audio side I'm using my two channel system -- I have used a separate surround set up, but am too attached to the synergies in my two channel set up to move back to surround. I have YBA monoblocks / YBA preamp / separate power supplies / and a PS Audio PowerPlant power regenerator. To avoid distraction, I won't discuss cables.
Why not move them to a separate listening room and get something for HT? You're missing out!
We are the same here. I don't watch TV with the exception of downloaded episodes of gossip girl which I'm just as happy to watch on my computer monitor.On the aspect ratio: I have a strong preference for 2.35:1 but bear in mind that not all content will arrive in that format (for example, television shows on DVD), and that the projector's memory lens feature is not truly anamorphic. Accordingly, I use 6:9. The lens memory feature is very easy to set up and use.
On why a projector: Image size and quality. I can get stunning 120" images, although for the space I have a preference for a smaller image size. Also, I do not watch television and do not have cable -- I watch content only through NetFlix DVDs or Vudu. I have not used the Netflix streaming service with my projector.