Adorama offers the SanDisk 32GB Ultra UHS-I Class 10 SDHC Secure Digital High-Capacity Card, model no. SDSDU-032G-A46, for $21.95 with free shipping. (Best Buy and Amazon charge pennies more.) That's $0.69/GB and the lowest total price we could find by $2, although we saw it for $4 less on Black Friday. It features a maximum read speed of 30MB/s.