I was looking for Rigol DP832 which is €500 shipped. I don't want to pay more.
I'm gonna used it in an automated testing environment where the computer is not necessarily in the vicinity of the bench, Ethernet is more convenient
Otherwise I should have a RPI like system, with USB adapters for serial or not having right drivers on Linux (a lot of things can go haywire and last thing I want to do is to debug).
I'm not excluding totally USB/serial/etc, but is not my first option.