The reason for two separate systems is so that I can listen to music late at night without disturbing my wife. You see our HT sits against our bedroom wall, so when I turn it on at night, she complains about the bass. The other room is quite a ways away, although connected, so she never complains.
Which is a higher priority? I haven't been able to make up my mind. I love movies and I also love music and enjoy critical listening. I suppose if I had to choose, I would say that my priority is music, that's why I put the 604's on the 2 channel system. However I have recently started to notice that my current HT sub flubs out with extremely low LFE. I may just try the Rumba in my HT and move the Velodyne to my 2 channel for a while to test.