Well I will say that I was actually very happy with the bottom end of my other HT. I only craved a better 40 - 80 hz response was all. & since I sit in the exact same location everytime I watch a movie I'm fine w/one sub.
I guess I'm just not willing to part ways with upwards of $6k just to ensure EVERYONE in the room is experiencing exactly what I am. It's good to be king.