GPS or no GPS....end result is the same once the decision to chicken out is postponed till it is not the pilot that makes the decision. Upon venturing past the decision point it is too late to affect the outcome. The key is in being able to see the DP approaching and being prepared, equipped, and able to make the decision prior to, at, but not beyond the DP.
Nothing beats looking out the window...and being able to see your surrounds in such a fashion so as to be able to avoid obstacles to safe flight and complete a safe landing even if that particular location is undesirable, illegal, or darned awkward.
Inpromptu landings have provided some of the richest experiences of my flying career....how else would one meet the people one does otherwise.