Amazon has 32GB SanDisk Ultra Class 10 microSDHC UHS-1 Memory Card /w Adapter (SDSDQUA-032G-U46A) on sale for $19.99. Free shipping with Prime (free student accounts available) or if you spend $25 or more.
32GB SanDisk Ultra Class 10 microSDHC Card w/ SD Adapter $20
Re: 32GB SanDisk Ultra Class 10 microSDHC Card w/ SD Adapter
Rocking this card in my Note II and it's just as fast as the internal memory. Definitely worth the money if you need one.