UPDATE: Sale over at B&H. Adorama still has it on sale.
UPDATE 2: Appears to be sold out at Adorama now too.
B&H Photo Video and Adorama are clearing out the SanDisk 64GB SDXC Extreme Plus Class 10 UHS-1 80MB/s — they are going for only $31.84 (B&H, Adorama).
This is an excellent price on this fast UHS-I SDXC card, with max speeds of 80 MB/s read and 60 MB/s write. This is the new low price; it was previously $40 on Black Friday, 6 months ago. Regular price for this memory card was $65.