GameStop offers the PlayStation Vita 16GB Memory Card
, model no. PSV22040, for $19.99
for shipping. That's $1.47/GB and the lowest total price we could find today by $9. (Most stores charge close to the list price of $40.)
You can also pad your order over $25 (this PlayStation Vita travel case
is $9.99) and apply coupon code "SAVER" to bag free shipping.