Downgrading how? As in, a trade off of quality of sound...or status of gear>?
The two are very different and are confused quite often.
I think a set of small KEF's, a decent old receiver and a planar3 setup might shock the hell out of many audiophiles out there.
(I mean really, when did you sit down and actually listen to a sub 3k system recently?)
Not expecting to be wowed can do an amazing thing.
It can make you focus on the music, which is the whole point, isn't it? I think many of us would do well to take an equipment break and get back to hearing the music.
To me, that would be a great UPGRADE!