The mac pro store offers products that mac does not offer. such as pro palettes, certain eye colors, lip colors, bruses, bags and cases etc. They sell things that makeup artists use as well as consumers where as mac only sells consumer products. hth!!
and i have heard there is a 1.800 number that you can use to order from for the mac pro so that you dont have to go into the store... or at least that is what i am told .... i have that to but i havent used it yet so i dont know if it works