This Thursday, Amazon has an interesting Blu-ray related deal of the day: up to midnight PST, you can order the IMAX movie bundle
IMAX: Oceans Collection (comprised of
The Living Sea,
Coral Reef Adventure,
Volcanoes of the Deep Sea and
Dolphins) on Blu-ray for only $34.99 (65% off MSRP, or under $9 per IMAX documentary). The price history for the BD edition of this all-time classic shows that this is the cheapest it has been.
See individual entries for reviews.
Thanks to forum member "fbc."
Update
This deal has expired now.