Be honest...how many BDs do you actually NEED to OWN?

[McCrutchy]

So I have about 100 BDs now and I collect them just as I did (and slightly still do) with DVDs. But I'm slowly beginning to realize that it's a bit of a lost cause--and I mean really realize it, not just know it. I have actually watched maybe 30 of my Blu-rays, and yet I still keep buying new ones, and then I might never watch them again, yet I can't bring myself to part with them.

So I wanted to know, what are the Blu-rays that you need to OWN, that you will look back on five years from now and be glad you purchased? These aren't necessarily those that you would re-watch multiple times, just those that, for whatever reason, you HAVE to have.

Mine:

Let the Right One In (UK)--I was shocked to discover the exclusive commentary upon receipt from Amazon, and the proper subtitling along with the Magnet fiasco in the USA makes this hold a special place in my heart.

Salo (UK)--this was the first (chronological) reason for me to go multiregion but I just got it recently. I love movies with checkered and controversial international histories.

American Psycho (AU)--My first import from anywhere.

The Dark Knight--I've been a huge Batman fan since I was very young. I got lost (in a power wheelchair) in the subway on my way to a 4:00 AM IMAX showing at AMC Loews Lincoln Square 13 on release day and had to get permission to go to the next (10:00 AM) show. When I got stuck waiting for an elevator there, I got three free passes and the bargain-hunter in me saved $48 seeing this 5 times in IMAX that summer. I had to have the BD, and I adopted the Blu-ray format the month it came out.

In Bruges (FR)--I will hopefully be replacing my French import with the US disc, but I saw this on HBO and it replaced The Dark Knight as my favorite film of 2008, and became one of my favorite films of all time.

So wow, five out of more than 100...kind of sad.