Me and many of the people I know use it everyday. It's the easiest 'cloud' storage out there and certainly the most popular. I'm not sure why you say it has no place in the future.
Dropbox as it is now is going to look like a toy when someone really solves syncing for us. An abandoned toy if they're not the ones doing it.
It's a little surprising that, fifteen years later, there's still no good way for consumers to have that. iCloud may eventually evolve in that direction, but for now it feels incredibly half-assed.