That amount of cash would have been nice, if it actually even changed hands, but even in 1997, with the absolute garbage they were selling, Apple did seven billion, with a "B", in revenue. Microsoft did just shy of twenty that year and DELL did "only" about $700M more than Apple as one of the most recognized mainstream desktop labels. The MS investment wasn't even half of what Apple spent buying NeXT from Jobs in 1996. He could have personally saw to it Apple got a piddling $150M himself if that was actually a figure significant to the company's future.
Now put those numbers in perspective considering Apple was still a niche player without the benefit of simply being part of the accepted standard on the desktop for mainstream customers who were happy to just buy whatever took the least amount of effort, what they had on their desk at work, what ran all the Microsoft apps they'd been conditioned to think they needed. Boring stuff appropriate for boring boxes, and it would be a few years yet before Apple took dominance in several niche markets, all still in their infancy or practically non-existent yet.
After this, and in the years since, what impact has the presence of MS Office had on the markets Apple dominates in? None, because Microsoft only makes banal, mainstream apps, the kind that dominate markets Apple wasn't significant in before Bill's giant head appeared at the developer's conference and the kind that they're still insignificant players in. The MS deal was mostly symbolic, part of Jobs' role as the messiah returned to the company he built. It was a "if he can do that, he can do anything," sort of deal. It was a show of faith and peacemaking and deal making ability (of course there would be future betrayals of this notion, the pain in the rear of Flash support, for no other reason than customers just not having to deal with the lack of it, forgetting whether it sucks or not).
I'll remind you as well that a few years later Adobe all but left Apple and the Mac platform. Through the early transitions to OSX their software was horribly under-powered because they were running it all through an emulation layer. Adobe is a terribly slow, mostly lazy developer. Still. The OS9 versions outperformed on the same hardware. Premiere had the dubious honor of becoming a not exactly frame accurate nonlinear editor. Folks beholden to Adobe apps started switching platforms to Windows in droves, including some high visibility professional customers. So Apple starts acquiring and then re-branding competitive software that takes big bites out of Adobe and Avid. And they came back. Adobe and some of the customers.
Ten years later they'd more than tripled revenue, no thanks really to word processing or spreadsheets or databases. They did it doing what put them on the map in the first place, making fetishistic products which is something Microsoft has not, cannot and likely will not ever have a hand in.
