The sticker on the box is only part of the price. What you really pay for a month of patches depends on how many boxes you buy at once and whether shipping is added on top.
One box at a time
A single box is $15 for 30 patches, which is 50 cents a patch. Ordered on its own it sits under the $40 free-shipping line, so $4.95 shipping takes the delivered cost to $19.95 for the month.
Three boxes
Three single boxes come to $45. That clears the free-shipping line, so a month costs $15 delivered.
The 5-box bundle
Five boxes are $60 instead of $75, so the fifth box is free. That is 150 patches at 40 cents each, it ships free, and each month works out at $12.
The monthly plan
A monthly plan at $12.75 a box is on the way. Until it opens, the 5-box bundle is the lowest price per patch in the store.
Comparing with other stores
Use the same three steps anywhere: divide the box price by the patch count, add the shipping you would actually pay, and check the strength in mg matches what you are comparing it with.
