It was probably about $15-20, not too much. I hadn't stayed there before, so didn't know exactly how close it really was or that I could have taken the metro there. @:-)

What really chapped me was that we got our bags and then spent about 10 minutes trying to find where the bus would be to pick us up and then someone finally mentioned that they didn't think the bus was running that late. So I had to call the hotel to find out that it was too late in the evening and then had to go find a cab. Had I known upfront, we probably could have saved ourselves about 20 minutes of frustration.