Yes, pleeeaaaase MS, get these ads on TV. This is worse than those corny Surface ads.
Anyway, not sure what YOU need in your business word processor, but I use MS Office every day and have never even been tempted to use any of the USP features Mr Z mentions. Maybe you only need those if you started your career when useless gimmicks in presentations were cool. Sure, MS Office has more stuff(tm), but if I were to shoe string a business, that's the first expense that goes.
And compatibility? Not surei f you remember the years and years and years and ye... of MS promising open documents, so ask who's at fault here.
Oh, and let's not forget about all those little bugs and idiosyncrasies in Office (esp. Word)! I'm sure you can save tons in training and support alone by staying away from it. Formatting issues without ever exporting anything, disappearing images, jumping images, fracked up references, the iidiotic way styles are handled when you create exceptions... How long has it been MS? going on 30 years now? Think you may get around to fixing some of those after all this time? (Disclaimer, haven't tried 2010 yet, maybe they have...)
I hope this campaign goes the way of the infamous Bing It On campaign where everyone and their mother ended up preferring Google results and MS pulled the plug in a hurry.