A dedicated streamer is usually more convenient to use from your listening seat, in your audio setup. But if you're talking about downloading instead of just streaming, then you need a storage location somewhere which usually means a computer, plus maybe network-attached storage (NAS).
There are also arguments to be made about a streamer's digital signal fidelity versus that of a computer (especially the digital output of a cheap soundcard).
There are also arguments to be made about a streamer's digital signal fidelity versus that of a computer (especially the digital output of a cheap soundcard).