We pay for office365 basically because Excel has no serious alternatives. Founders use Powerpoint. And that's about it.

Also, Microsoft have gotten stupid and lazy with Office. Each app eats 2 gig disk, all from non-shared Resources/Fonts/crap. Users who just clicked default install ended up with 9g of disk space gone. Why is this a big deal? Apple's extortionate pricing on mbp disks and the inability to upgrade them for less than the price of an entire new computer. There's a hacky way to fix this.

https://aaronweb.net/blog/2016/01/office-2016-mac-decrease-d...