Last Exit

So, we were at Thoughtbubble in Leeds this weekend (proper report to follow, but short version: it was brilliant).
One thing you notice at conventions are t-shirts... lots of t-shirts, and quite a few of them are from the LastExitToNowhere range.

How can something be so completely geeky and esoteric, yet be achingly cool at the same time?
Like this for example:

No, actually, that's too easy... this one:

Oh I could go on...
Sorry if this looks like an ad for them, but it really isn't, I just got over excited by cool t-shirts. It is, after all, the nerd way...