That is not categorically true. On the business side, there's plenty of companies that have offered and succeeded with self-hosted software. On the client side

That is not categorically true. On the business side, there's plenty of companies that have offered and succeeded with self-hosted software. On the client side, there's many individuals like myself willing to dedicate time, money, and effort to self-host services. I spent quite a bit of time setting up my NAS with self-hosted services, not only because the number of photos and media I store would be prohibitively expensive to host elsewhere (I do photography and videography as a hobby, 120 fps 10 bit footage adds up), but because I enjoy the hobby.