Just got the email:
We are pleased to announce that exclusively at Captain Sim online store, from 00:00 to 23:59 11JAN2017 (UTC) everything is $9.99. Visit us at: http://www.captainsim.com
24 hours only. At 23:59 11JAN2017 (UTC) all prices are back to regular.
Captain Sim News
I posted here so people don't miss.
Thanks - RobM
PS Although note the sale isn't until Jan-11