Battlestar Galactica: The Complete Series on Blu-ray for only $119.99. I can't recall ever seeing a lower price.
Battlestar Galactica: The Complete Series on DVD for $80.99.
While I didn't check every Jamie Bamber related title on Amazon's site, I also took a look at the price for Horatio Hornblower: Collectors Edition (all eight films) and the box set is currently selling for $25.49. Again, that's about as low as I've seen it priced.