I'm a photographer as well and I use Crashplan (they supported linux) and they're priced similarly (even cheaper I think). The application they provide supports backing up your data to their cloud *AND* other media. The way it works for me is as following:
- Backup to cloud (offsite online backup, new data gets priority)
- Backup to local NAS (onsite backup)
- Weekly backup to portable drive (offsite offline backup)
All with one application.