i noticed the 13 inch mb air is more expensive than the 13mbpro what justifies this? the specs on the mbpro are better is the air more expensive and wanted by all of you simply because it is about 0.3 inches thinner and a lb. lighter???? im not being facetious i genuinely want to know what the advantages of a 13inch air are over a 13 inch mbpro i am reviewing the specs and it seems like the 13pro is the obvious winner here? better specs and less $?