SuperMediaStore offers the PQI 16GB Class 10 microSDHC Secure Digital High Capacity Card with Adapter (pictured), model no. 6ARH-016GVR44A-62, for $22.99 with free shipping ($1.44/GB). That's the lowest total price we could find by $5 and tied as the best price we've seen for any 16GB Class 10 microSDHC card without rebate hassles.

Of note, Buy.com offers the Kingston 16GB Class 4 microSDHC Secure Digital High Capacity Card with Adapter, model no. SDC4/16GB, for $16.95 with free shipping ($1.06/GB). That's the lowest total price we could find by $3.