Why does Batman collect Memorabilia?

[OverMaster]

Originally Posted by Redem

I for one wonder how popular auction for Crime Memorabilia are in Gotham, I mean they have pretty colorful vilains plus everything that look normal probably some lethal weaponery

The Secret Origins Special story starring Riddler revealed most of it is left at an old junkyard since no one wants it.

[jgiannantoni05]

In an issue of The Batman Chronicles, it was explained Batman began collecting memorabilia on a suggestion from Alfred, so he always would have things to remind him of his victories when he was depressed by the futility of his mission.

That story also made the giant dinosaur the first trophy to be put in the cave.

OverMaster, you are correct sir.
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[Alan2099]

Batman keeps it because he's a jerk.

"Yeah, Riddler, I just kicked your butt and now I'm goign to take that lifesized statue of yourself with the working questionmark shaped machine gun that probably cost you all sorts of movie to build. What are you gonna do about it, huh?"

[Wonder Dude]

The Cave could use some more memorabilia from more current victories.

[Redem]

Originally Posted by Wonder Dude

The Cave could use some more memorabilia from more current victories.

I agree

What kind of Memorabilia would be fitting for the most recent developpement in Batman history?

(still kinda wonder what kind of thing Dick Grayson would collect)