Interesting analysis
Thanks for the info Gene! It is like you said in terms of my conundrum... I'm not sure if I really want to go all out with the RBH design, especially since this "built-in" system would be difficult to wrestle loose of the house if we ever decide to move. However, as much as I love the Klipsch speakers, space is at a greater premium. Not that the room would be small, but I like the idea of having the speakers close to being flush with the projector's screen. As you mentioned as well, I would like a warmer, more detailed sound though I have to admit that I'm a little spoiled by the power that my upstairs Klipsch system provides. I like that. I'm sure that RBH is powerful but would probably require a good set of separates and that puts another wrinkle into the budget for this. I don't want to go overboard. I know that Axiom produces some in-wall designs but their approach seems more like a kind of "hybrid" in-wall / freestanding setup.
I had read the review you sent the link to before but had forgotten that 6100s were used. I am leaning to that setup just because of the space and sound-quality considerations, even if I don't get the type of volume I can get with the Klipsch, that is alright. I'm sure in my size room (~12 x 19 x 7 feet) it should be plenty. I am still wondering how to deal with the subs, I know that there are built-ins as well, but the depth is 9" as opposed to 3.5". So, there is a lot of planning to do in this regard.
Also, are there places where RBH is sold other than at brick and mortar A/V stores? They don't mention online where one can find them or what their prices are. That would be helpful for planning. Thanks!