In short most sales of office 2010 are extinct (US English) and those that do exist for less than $250 USD look pretty shady.
So, if anyone has a site they know and trust that has a copy for less I'd love to know about it.
Here is a $10 option sponsored through MS but I don't have company in...
$10
$110
$149
$249
$350
?fake
access
business
current
email
home
key
loose
matters
offer
office
pro
problem
product
real
runs
site
subscription
tho
time
for those that have been searching lately, this link may help
BODY STYLE : seat cover [6518721B]
I have bought a few things from japan, service has been prompt and I got exactly what I ordered even tho the site does not always list items in english
could be worth a look
cheers