Amazon.co.uk offers the Alien Anthology on Blu-ray Disc for $9.54 (£6.29). At final checkout it drops to $7.95 (£5.24). With $4.67 (£3.08) for shipping, that's $5 under our September mention and the lowest total price we've seen for this set. (It's a current price low by $12.) This 4-disc set features Alien, Aliens, Alien 3, and Alien Resurrection.
Although Amazon states that this set is only for region B, customer images show that the discs are labeled for all regions.