Best Buy via eBay offers the SanDisk 32GB Extreme PLUS UHS-I Class U-1 microSDHC Memory Card, model no. SDSQXSG-032G-ANCMA, for $29.99 with free shipping. That's the lowest total price we could find by $2, excluding the below mentions. It features transfer speeds of up to 95MB/s and includes an SD/SDHC/SDXC adapter.

A couple of close prices: B&H Photo-Video has it for $30.95 with free shipping, and Newegg has it for $29.99 plus 99 cents for shipping.