Or...as Newton's third law, the law of reciprocal actions, states "To every action there is always an equal and opposite reaction". In this instance, that equates to the shoe that I love but would be unable to stand up in...aka Repetto's suede heeled loafer (a shoe that, to me at least, demands to be worn by a 60's era Catherine Deneuve)...and the viable alternative that I could actually (damn my practical self) walk in...aka Urban Outfitters' rather unappealingly named 'Leather Lady Heel'.

Side by side, one is but a poor imitation of the other...but if you separate them...and squint...on second thought, perhaps I need to revisit the original question...after all, is mobility an absolute necessity?