TigerDirect via eBay offers the SanDisk Ultra 64GB UHS-I Class 10 microSDXC Memory Card, model no. SDSDQUAN-064G-G4A, for $24.99 with free shipping. (Amazon offers it for the same price.) That's $5 under our mention from March and the lowest total price we could find by $6, outside the price below.
A close price: Newegg offers it for $24.99 plus 99 cents for shipping.