Saw these at Fry's in their anime bargain box (they're stacked in a box set in the aisle). Limited edition sets (labeled Platinum Edition) of .hack//sign volumes 3, 4, and 5, all $6.99 each.
v3 includes DVD + OST CD + mini-CD
v4 includes DVD + OST CD
v5 includes DVD + box to store four CDs
Stock is limited and varies with location. These are also listing at the Fry's web site (outpost.com) for the same price.
Our local Fry's also had the three Mamoru Oshii live action films at $6.99: The Red Spectacles, Stray Dog, Talking Head, along with a large number of other titles.
If you're not close to a Fry's, browse the anime DVD list at Outpost.com and look for the clearance prices. Example: complete 4-DVD set for Jubei-chan at $6.99. Supply is limited as always. (Note: navigate to their list and click on "Price" to sort.)

