Thanks to Jim M. for the suggestion.
Pick and choose the items you want at NEAR bulk prices! You can only pick 2 items and a quantity of 1 unit (10 packs) per item. My thought being, you can pick matching inner and outer sleeves in equal quantities and save a few dollars without buy a bulk pack of just one item.
When you see the green "Good to go" label, that means you can check out. If you delete one of the two items from your cart, you won't be able to check out and will see a warning "Min. Qty is 2 Items". You will either need to delete the single item or add another "Build a Bulk Order" item to get the discount.