@sfoskett The more services you offer, the more difficulty clients have in moving.

Switching search engines is pretty easy. Switching away from Office 365 means changing
- email
- storage
- document formats (sort of)
- all those powershell scripts
- et c.

So when MS told charities they'd get free Office 365, the charities joined. Then it stopped being free, and charity-money now goes to MS, because they're not going to move.