I suppose that what you are asking (or proposing?) is whether a home QTH with large high performance antenna(s) and otherwise outstanding RX performance should be used as a early warning system as a precursor for running down to the beach with smaller antenna(s) and poor performance portable receivers??
My thoughts are that I would prefer to be at my home QTH drinking my wine and eating warm quiche in my easy chair rather than crouching on a cold and wet bench at the beach with the wind blowing sand in my bologna sandwich.
Let me know if I've misinterpreted your post.