OTOH everywhere I've worked has bought licenses both to MS office products and the google analogs. Dropox too. Enterprises buy things if a big name comes and markets it to them. If wind catches that everyone is also buying slack/google drive/whatever, the people in charge of buying enterprise software jump like lemmings. It's insane. Why does every job I join with more than 100 employees pay for three commercial cloud storage providers??? Software salespeople must be really good at their job these days.