Why do I need an additional player device if I have a Roon nucleus and a dac?

Thanks for Darko link. Seems he is using roon to connect to streamers.  A way of promoting products he may be getting paid for.

he doesn’t choose to keep it simple by using nucleus connected to a standalone dac.  His setups are abit involved.  I like listening to him but always wonder about independence.

Thanks verdantaudio,
great info.

i will likely get the nucleus.
my Ethernet occurs by splitting the incoming tv cable, supports modem and tv.  A hole in floor is how cable comes into room. Also, via router I feed Ethernet to this room and a downstairs room via hole in floor.   

Thanks all and especially drrsutliff.  Streaming equipment can be abit challenging to understand, and it don’t need to be.  So easy to make a purchase mistake, etc.