OK, granted.
It seems like my usage case isn't the intended case. Still, I'd love anybody to confirm whether or not the device requires persistent connectivity beyond initial setup to play local music.
This page: http://www.computeraudiophile.com/f26-sonore-sponsored/sonicorbiter-direct-connection-mac-pc-beta-28606/
has the following statement:
1. The Sonicorbiter operating system requires internet access to work properly so your Mac computer needs internet access via Wi-Fi enabled.
To me, that sounds like the device needs to ping the manufacturer's servers to continue operating. If that isn't the case, then great.
If that is the case, then you are making the entire operation of your music system dependent on the tiny manufacturer of this device. If they go out of business or even just have a bad day and their servers go down, then is your entire system bricked? I would hope that's not the case, because that's some serious fragility and dependency right there.