I know this is responding to an old post - but I move at glacial pace with my upgrades right now, work has kept me away from home and largely out of country for, oh, about the last two years....any way, I just ordered a Marantz SA-KI Ruby SACD/CD from MD. They've got them on clearance for the same price ($3K) as the SACD 30N (I don't really see any other places carrying the Ruby's and they were advertised as limited in number so I'm assuming deadstock at this point).
In reality, I really wanted the best SACD/CD player in my price range. Second, the bluetooth and WIFI capability. I don't really care about the streaming from different providers (I don't have any Tidal, Spotify, Pandora, etc.)
To supplement the BT/WIFI cape that I'm not getting with the Ruby, I'm gonna get a cheapo Audioengine BT RX that is advertised as having a 100FT range. My PC in my office should be more than close enough (even with walls) to send my large digital library on my PC to my stereo (ok, it's not WIFI but it will produce the same result).
Anyway, thought I'd follow up on this ancient discussion.
Edit: I also hear Marantz is raising its prices so I expect the SACD 30n to go up in price soon.