They sort of already have https://en.wikipedia.org/wiki/Mailbox_(application)

Dropbox is a publicly traded company (DBX) so any desired VC exits have already occurred.

I wish they were privately owned. As a publicly traded company, being profitable is not enough. Grow Grow Grow leads to bad decisions being made.

Don’t use the technology services of public companies whenever possible. Shareholder interests are not your interests.

Completely agree and for most things I use open source. Email and File backup are the only things I pay for. I could even set them up myself but I just dont have the bandwidth right now