>Something called the "Pro", and something that costs a pretty penny, shouldn't just cater to the ones out and about and only needing Excel.

Do you know of that instant update feature in Excel? It automatically updates cells when you alter one, up to a certain performance point. My MacBook (non anything) stops doing so much faster than when I use a desktop. When I do process a line of heavier formulae I do have to also wait a fair amount longer than when I use a larger machine.

And the pretty penny argument does not really hold up when you are talking about it as a company expense, due to the very favorable tax perspective.