For us Microsoft tools were the highest price point and we didn't use 50% of the features. Apple Enterprise is a joke though they are making good progress now. Google had just enough of a tool at a price we could really justify to the tax payers. As for Google evangelism we offer Google docs and office 365 online. Students are free to choose as Google and Microsoft have been awesome at cooperation in tools. We also have a training with outgoing seniors about how and why free accounts exist on websites. I've always told them they can used a paid account to retain privacy. To this date no seniors have chosen this. Most don't even convert accounts but just use takeout, the bulk data download tool.