Apple Spends a Lot on Advertising, Microsoft Spends Double

Are the numbers right? A quick calculation using the numbers in the graph shows that Microsoft revenue is roughly above 57000 mil whereas Apple's is very close (49800 mil.) I did not expect to be this close !!

It's easy to forget that Microsoft has a much larger market share than Apple and therefore has a lot more capital to mobilize. Then again, Apple has no gearing and holds a lot more cash in reserve. I think the primitive conclusion to draw from this is that Apple are very effective with their advertising campaign whilst Microsoft are less effective but have more exposure (and gain more)

But that Market share gap is closing