Fry's offers the Patriot 32GB microSDHC Class 10 Secure Digital High-Capacity Card, model no. PSF32GMCSDHC10, for $17.99. An $8 mail-in rebate cuts the price to $9.99. With $1.99 for shipping, that's the lowest total price we could find by $8. It includes a full-size SD card adapter. Rebate expires July 24.
Update: Shipping cost corrected above.