Plus an even more substantial purpose McCain just can't afford to pay for to let the Shrub "pull him down to his level" (this in the phrase of the CBS cameraman, a Louisianan who’s very a little bit shorter than the regular tech and so other than all his other tools has to lug a small aluminum stepladder close to to stand on with his digital camera all through scrums, which decreases his mobility but is compensated for by what the other techs.