yup - around here, on the shelves, that ammo is about $1 a squeeze.
so $0.86 per delivered isnt a huge savings, but if you could spread the shipping over a couple boxes, your cost per should go down and make it more attractive.
i just added 3 boxes to my cart and got a shipping estimate of $11.25 for ground (for all 3) for a total of $88.86 for 150 rounds - $0.593 per round (from the OP's link)