It's not that often that retailers offer sales on anime on Blu-ray, so they are worth mentioning when they do happen. Best Buy's ad for the week of July 4-10 features many of the titles from the FUNimation catalog at discounts of over 50% off MSRP, in most cases at their lowest prices ever. Shortly after, Amazon matched those prices.
Discounted titles include:
Additionally, Best Buy has
Samurai 7 for $19.99, $10 less than Amazon, although in store only.