That's a lot of work to move those big boys around!
I've also been playing around with different configurations, hoping my wife won't notice! Lately I've reduced from 5.1 to 3.0 and I really like the full front sound stage without all the clutter. I know some people might question 7's as centers, but I've also really come to appreciate a strong center channel.
Crazy? Maybe. But why not, if you can?
Lucky for me that is the ONLY room I have 100% control over. I don't even get a say on the garage and where my tools go. I haven very curious about building the bigger front stage and like you said if you can try than why not.