Locative Media & The City

Just to add a little more to the discussion on pervasive gaming I have to ask, how important is it to question its relevance? Is the long lasting impact really what would give it value and authenticity? I find its core function in notions of real vs. fiction and power realtions. We live in what Chomsky would call a stage, constantly moving around as actors in our own worlds, but mixing both into a gaming session combines these paradigms which exist in our everyday lives. Questioning the relevance appears purely subjective and would assume that there is a 'correct answer.' What if it is simply enough to say that the structure of pervasive gaming exists in order to change one's experience in the city?