Music Server with no DAC?

Why doesn't Logitech or Sonos create a version of what they have with no DAC? Who wants to buy 2 DACs? Many of us already have DACs. I would love to get into a Sonos, but all I want is digital out. Similarly, I like the idea of the Logitech Transporter, but how about no DAC and drop the price in half or a bit more? Just have AES/EBU, S/PDIF and maybe optical out...

I think there would be a big market for that because who wants to buy 2 of something when they don't need to, and particularly when people are particular about their DACs and don't want the one in the Music Server.