Sogood-
I know what you mean. I've been going back and forth on this. My center channel speaker, while not up to the Maggie quality, is actually a pretty good performer. It anchors the dialog quite well. The NS500V is a weak link and needs to go regardless of where this ends up (probably to the family room system). I just find myself playing records more and more. I do have a 5.1 system in our family room, and If I turn my main room back to 2 channel only, I would move the Magnepan MMGs and the Sunfire Super Junior sub as the front left/right/sub (with the Heybrook center and a pair of Sound Dynamics RTS3s for the rear. The 52" RPTV would also relocate to the family room allowing us to watch movies and the occassional 5.1 SACD on the NS500.
You ARE however, giving me some good food-for-thought :)
PS: What cable are you using to connect your TG to the SACD?
Do you have the TG II or III? I ask as my II uses a DB25 connector.