With all due respect, you did get these tickets, round trip, for probably well less than $100.
Delta has bent over six ways till Sunday to honor them, even to such lengths of rebooking people who didn't even get a confirmed PNR, let alone a ticket number.
Forgive me if I don't (or more importantly Delta does not) feel like the fact that you spent a few hours on the phone while the majority of the country is dealing with the snowstorm of the winter, disrupting the travel of hundreds of thousands of people who, unlike you, may be stuck in an airport for the night, warrants any compensation over and beyond honoring $55 round trip tickets to an exotic destination.
You're not the only one who had to spend some time on the phone with airlines today.
But, hey, that's just me.