[0] Zoho is the other alternative but even their offerings tends to become expensive once you start using more than a single app.
Zoho realized this problem of multiple subscriptions a very long time ago. This is what inspired us to work on the depth & breadth of products Zoho offers now.
I pay for O365, and G Suite and Adobe CC (among others) at our small shop. I think G Suite could be the easiest to lose.
And I wouldn't have thought I'd prefer MS over G for Office stuff a year or two ago.
I don’t see why anyone pays the same amount for just DropBox. Not to mention that Dropbox is basically malware on the Mac.
I expect most of the bigger companies to succeed at converting any desktop product to an online version, and get their customers to adopt it, but beyond that I think you'll see a lot of flops.
I know it’s anecdotal, and while it’s certainly great for us, it’s also quite a lot of money that isn’t entering the market because things like teams and planner are now standard products.
I think the next few decades will be increasingly hard for the SaaS market, because big tech will simply implement the best ideas out there into their current subscriptions.