Sony 32GB UHS-I Class 10 SDHC Card for $19 + free shipping
Adorama offers the Sony 32GB UHS-I Class 10 Secure Digital High Capacity Card, model no. SF32UY/TQMN, for $18.95 with free shipping ($0.53/GB). That's the lowest total price we could find by $1, although we saw it for $2 less a month ago.
4 very similar deals were also reported by some other sources: