So I've invested in the ifi NEO which, to my ear, offers a bit more air, soundstage definition and overall top end clarity vs the Chord Mojo I've used previously. But not a lot honestly. Isn't it crazy how, I imagine most of us, would spend hundreds of $ to achieve what might be a slight, incremental 10% improvement in sound -- the kind of gain that might only be clearly perceptible via a quick A/B comparison at matched volumes? Done it before -- and probably will again... reluctantly at first but happily in the end.