(ENDED) 32GB Sandisk Extreme Class 10 UHS-I for $31.50 (64GB for $63~)

This limited time promotion expired... If you are a fan of the Sandisk Extreme 45MB/sec Class 10 UHS-I memory cards, Amazon itself has two specials. Free shipping and a limit of ten cards of each storage capacity per customer:
+ 32GB Sandisk Extreme Class 10 UHS-I for $31.50 in frustration-free packaging
+ 64GB Sandisk Extreme Class 10 UHS-I for $63~ in retail packaging
+ both: free shipping, 45MB/sec
+ correction: the 64GB card is in retail packaging, not frustration-free