Why is there no Internet-aware CD Changer?

In the devices that should exist by now category, it seems to me that now that there are CD changers that hold hundreds of disks (like this 400 disk Sony), they ought to come equipped with Ethernet and/or WiFi connections. You should be able to load the changer up with CDs and let it go out to CDDB (or Gracenote or whatever they're called these days) and do their own metadata retrieval and indexing.

Instead they seem to think it's a marketing feature that they have a keyboard connection - now that sounds like a recipe for repetetive stress injuries if I ever heard one.

Update
After some further googling, I did see that there is a 200-disk Kenwood changer that connects to a PC via a RS-232 serial cable (now that's modern) and they offer software to download info from CDDB. And there is a hardware/software system scalled TitleTrack for the Mac that hooks the Mac via USB to Sony changers and accomplishes the same thing. But that costs $389 - almost twice the cost of a 400-disk changer. Jeeze.