For in-store pickup only, Fry's offers the Samsung Evo+ 64GB microSDHC Class 10 UHS-1 Memory Card, model no. MB-MC64DA/AM, for $18.99. (Shipping is available but currently on backorder.) That's a buck below our mention from two weeks ago and the lowest total price we could find by $6, aside from the mentions below. It features read speeds up to 80MB/s and write speeds up to 20MB/s.
Close prices: Best Buy via eBay and B&H Photo Video charge $19.99 with free shipping.