| Sharaya Customer Service Representative |
Hi Mark,
It looks like this is the cheapest way the system found to do it, based on item shipping categories and limitations.
The booster case is cheapest as it's own shippable package.
For the other items, domestic shipments going standard post have various shipping restrictions on total weight of package and bound-printed material (so, books) vs. other items. I don't have the full details on all of that, because there are a lot, and it gets complicated. Short story: it looks like they were set up for shipping as efficiently as they could be.
If you have another questions, please let us know.
Thanks!
~Sharaya