I don't think that even with the most sophisticated techniques for rowing, rollering or hauling up with A-frames etc, that anyone would undertake such tasks just for the fun of it.

But that sort of re-emphasises the nature of the question. Why bother moving them at all? Is it just a statement of anthropocentric assertion of control over the environment, or some kind of railing against existentialist angst by aiming for permanence of statement? Or maybe it was sort of just for the fun of it after all, as a way of staving off boredom, in a 'just to see if we can' kind of way.

You do it SG, what's your motivation?