Re: Thankfully...
That seems to be something too many business people seem to have forgotten - it can take years to build a positive reputation, and these days just minutes to destroy it. Pee off a customer, and they tell their friends about it, and your reputation can be trashed at the speed of social media.
Of course, the only reason some of them don't actually care is that they have sufficient market power that they really don't care how peed off their victims are - if you are in the creative business, then in practical terms you have to be able to handle the files clients bring you, and in practice that means running the same software, and that means you are stuck paying whatever Adobe decides you can be fleeced for this month. Going back "a few years", Quark had an "annoying feature" in XPress - when a new version came out, they also updated the file format, and didn't offer a "save in older version" option. So if you had v3.3, it would automatically update any file you opened to v3.3 format - and there was no way to save in (say) v3.2. So that forced people to upgrade whether they wanted to or not - if you don't update, you can't open files your clients send you; if you do upgrade, any clients who don't can't open any files you work on for them.
And MS don't care what customers think, thanks to some shrewd moves, and many illegal ones*, they've engineered a situation where it's "very difficult" to not use the full MS stack in a business of any size**.
* A proved in court
** Yes, a small business can use alternatives, but for large businesses, it's really hard to put together the full stack without using 365, and 365 is deliberately designed to make swapping out any components more or less impossible.