I don't think this is true at all. There are huge network effects because of folder sharing. I've gotten at least a dozen people to sign up for Dropbox over the

I don't think this is true at all. There are huge network effects because of folder sharing. I've gotten at least a dozen people to sign up for Dropbox over the years this way. It was tough at first, but the adoption rate is sufficiently high now that in a group of 5, there may be only one person who hasn't got an account already. And when they're the odd one out, the peer pressure to sign up is so great that it forces even the latest of late adopters to give in. Apple is irrelevant because they're not cross platform, and no one will trust their data to a Chinese company, particularly the businesses that actually pay for Dropbox.