I use one input for my dac, one for my phono preamp, one for my sacd player, and one for home theatre bypass.
I use the input for my dac 95% of the time. I use it when I stream.
Do Preamps only Need Two Inputs in the New World?
I finally made the move into a high quality DAC - a used Denafrips Venus II 12th. With that part finally sorted and my digital sources (DMP A6 and SMSL PL200T) connected to it, I only use one input for my digital stream and one for my turntable. I do still have a tuner connected but do not use it due to distance from stations.
With a great Phono Stage and a Great DAC is there a need for the added complexity. Due to the rapid changes, I do not think that an expensive preamp or integrated with a built in DAC is a good idea.