especially if you're in a DAW?
with pratically unlimited virtual mixer channels?

hat on one channel, snare on another, kick here, sample there, keys here, etc etc etc. seems tedious @ face value, but the sculpting control you get over your composition just goes up exponentially.

i'm guilty of not using this to the full but what i DO do now beats the days of yore when i used to have everything sitting right in the master mix channel, eq'ing out important bassline information cause i needed to trim down a boomy kick or something.

if you're in hardware, maximise your channels as best you can. if you have 8, use 8.