Can you say, Mr. Arkadin? 3 versions of the film, documentary, the radio episodes, commentary, interviews, and outtakes … not to mention the novel is packaged as well.
And Fanny and Alexander is an obvious one. 2 versions of the film, commentary, conversation with Bergman, and documentaries.
The Blade Runner 4-Disc set is pretty impressive.
Peckinpah has some great editions as well (well, maybe Cross of Iron is a bit barebones, but it does have commentary, such as it is, heh). The Cassavetes’ Five Films box set. Lynch’s Lime Green box set.
the werner herzog box set for 20$ online, and The brothers Quay Collection for 3$ at a local record store
Aside from the recent B&N 50% off sale…I would have to say….
Recently….

Amazon has it for $80 but since not many people look for it on eBay, I got it for $9.50 two weeks ago.

Amazon has it for $56…got it on oldies.com (it’s still on sale I think) for $12.99.

Amazon has it for $80, purchased it from Amazon for $25

Billy Wilder set which is $107 on Amazon, purchased it for $29 from a seller on Amazon who had a few new.
$12.99 for the Blade Runner 5 Disc Blu-Ray set is the best deal I can think of.
Got the Blade Runner 5-discer for 7 euro a few weeks ago.

The Ingmar Bergman Collection (30 disc) (rrp £299.99) for merely 60 quids!
Any DVD deal is worth if it is the movie we really want to watch. Pure enjoyment equals the investment.
I got a blowjob from the girl behind the counter once. Forget what the film I rented was.
I just made that up.
About forgetting what the film was.
I got Leone’s “Dollars” trio in a sale for £1.99
Dollar’s trilogy for 10 dollars aus
Takashi Miike’s Black Society Trilogy for $15 and a recently OOP 2nd hand Criterion DVD of Ran for $20.
I got the magnificent Complete Norman McLaren for free (God bless the gift certificate!).

↑ One of greatest DVD sets ever. I’ve literally spent weeks on end looking through this set :)
Duncan jones debut movie MOON………£3 in Tesco…….was £5…….scan code error rang up £3…. mouth shut………result.
brady qw
I would have to say my 2-Disc Once Upon a Time in the West. Commentary, 3 Documentaries, Wide-screen, Restored, Subtitles and Filmographies for the cast and crew.