I don't know the pricing model they were proposing, but the "it costs $500/year for 500GB on Dropbox" line would have probably been where I started.
For me, as a photographer with around that amount needing to be backed up, I'd want to know what their service offered me over the $59/year for Carbonite (that can also back up just about anything else you want).
For me, as a photographer with around that amount needing to be backed up, I'd want to know what their service offered me over the $59/year for Carbonite (that can also back up just about anything else you want).