Update: Sadly, this was too good to be true. I just received this email:
"Please be advised due to a mapping issue on
Amazon we have encountered a unit of measure
issue with the item you ordered.
The item was incorrectly listed as ten reams
when the item is actually being sold as a
ream. Regretfully we have canceled your order
or this item.
We sincerely apologize for this error and we
ensure you that all measures will be taken
to prevent issues like this from arising
Thank you for your understanding."