Agreed about the factory outlet (I got all my gear through the outlet)
The only problem I see with the factory outlet products is that they take so stinkin' long to get!
Also, I know you probably don't want to hear this, but the QS8s might be a worthy addition to your room size over the QS4s.
I would suggest going with the QS8s (if you can swing it), if not, then i guess you can't!
Keep in mind if you order over 5 items at once from Axiom, you get another 5% off (that 5% might be enough for you to upgrade to the QS8s)
-Hutz