I love Amazon, but I just don't get them. Paid $49.99 for a DS4, got free same-day delivery. It's being driven from Chattanooga to Atlanta. I suppose there might be a few other things on that special Lasership van, but that has to be completely over the top expensive per item. That's an easy $10 in fuel for the trip, plus the labor cost of the drive, which is about an hour and a half with no traffic. Or I could have it in two days, shipped via UPS with a ton of other packages to their hub in Atlanta.
You have to wonder what the cost structure is between Amazon and these same-day delivery companies.