That one had me puzzled too, until I looked at the shackles. Those are 3/4” Crosby shackles, and actually do cost that much. Scroll down a little more and you’ll see they’re listed at $130 each.
We don’t have Crosby shackles, for that very reason. They’re definitely an excellent shackle, but I can’t justify the cost difference, for the amount we use them.
The crane tie in front Gap Arborist is definitely an excellent choice, I don’t think you can go wrong with it. You just can’t lift a truck with it the way you can with the Crane Man setup.