I completely understand, and feel for, those for whom the Ultra doesn’t have enough/the right inputs.
This is not a criticism of you.
I think the Ultra has an astonishing number of inputs.
1 - Streaming
2 - Bluetooth
3 - Optical
4 - USB storage
5 - Phono
6 - Line In
7 - HDMI
I can’t think of too many instances where 7 inputs would be seen as ‘a bit lite’.
Obviously, if all the ones you need are not there, that maybe doesn’t help. But anyone who a PC with USB out, or a digital source with coax out, can buy a very cheap converter and use the optical input.
As I say, I’m not criticising anyone’s needs, just adding a bit of perspective.
For the record, I have a shedload of CD rips on my PC, which I previously fed to a DAC using the PC’s USB out. I’m now copying those rips to an external drive, which I’ll plug into the USB input on the Ultra.