If you live somewhere everyone else has Prime, you'll usually get free super saver items in two days or less as well. I don't pay for Prime but since the truck is on my street every day, my stuff gets dropped off quickly anyhow.
I get that benefit, but I feel it's in the way of having to find $25 worth of items before placing the order. A lot of times I'll change my mind on that $8 item before I get there.