Free cloud storage is the free sample of cocaine that gets you hooked. MS, Google and Apple want you to buy ONLY their hardware or their music, movie and app downloads, use their paid products like Office365, upgrade from their free to paid solutions and harass your IT department to buy their corporate offerings for work. But most of all they don't want you to use the competitor, they want you addicted to their whole ecosystem. It is harder to switch from an Android phone to an iPhone when you also have all your music purchased thru the Play Store, all your files in Google drive and all your email in Gmail.
