There's more than zero in the deal, I'm sure (lots of zeros, it seems), but even if sales haven't been affected yet, Web-based and open source alternatives like Open Office are clearly gaining momentum. And if you follow the presidential primaries, you know market perception is all about the Mo.
I don't think it'll be too long before corporations get comfy with using free software. When that happens, $300 MS Office licenses are a relic for the digital archeologists.
Nicholas Carr has some thoughts far more insightful than mine.