Waiting for my YUL-JFK I overheard them ask for 7000 lbs of fuel to be loaded onto the plane. Seemed like a lot and I was trying to figure out how much a gallon weighed (I was clearly bored as the flight was delayed due to the FAA meltdown)..anyway..got on the flight and there are only 7 paxs total on this flight (crj50)...which I haven't seen in years- esp w so much reduction in capacity. Anyway, at at least 1000 gals of jet fuel per pax to get home..I almost feel guilty (talk about a carbon footprint!). I know the plane has to get back in order to not mess up the schedule, but it seems like it would have made sense to cancel due to faa mess and load everyone up in the AM- they probably could have denied hotel and blamed it on faa or weather. I used to fly usair and guarantee they would have done the same. (Actually their flight would have been cancelled because their crabby GA felt like it). Anyway.. Just an interesting observation..props to delta for getting me home tonight :-)