As one of its daily deals, Amazon offers Prime members the Harry Potter: The Complete 8-Film Collection on Blu-ray for $34.49 with free shipping. (Non-members can spend $49 or more to qualify for free shipping; otherwise, shipping costs $4.98.) That's a buck under yesterday's mention of a digital collection and the lowest total price we could find by $31. It includes a ticket to see Fantastic Beasts and Where to Find Them in theaters. Deal ends today.
Of note, we saw the collection from Amazon.co.uk for $2 less last week, as listed here. The movies are region-free, but the extras may not be.