NCIX has the Retail Plus 16GB Class 10 Micro SD card for $5.99:
http://www.ncix.com/detail/retail-plus-16gb-class-10-ce-65197-1374.htm
Also, the 32GB SDHC is $9.99:
http://www.ncix.com/detail/retail-plus-32gb-sdhc-class10-a8-63855-1374.htm
Order online and pickup in store(don’t forget to check insurance off). Everything in stock as of 12:09am EST
Very limited quantities! While supplies last.