Please be careful, there isn't anything about a near-death experience that's worth dying for (heh) I can tell you that from run-ins with the man in black that there's nothing special about it. Your life doesn't flash before your eyes, there's no tunnel, no dead relatives, no angels singing, no bright lights, and, in my experience, no greater appreciation for life... I haven't experienced any of the things people often associate with almost dying. it's quite boring actually, it's a lot of adrenaline, followed by a calm, peaceful feeling... both of which you can experience without dying or almost dying.
Now as for what comes after death I don't know, no one does... I just know what happens just before you die, and it's not worth it, it's to easy to slip up and actually kill yourself.
but to answer your question, no, I'm not obsessed with it, I've had my fill.
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I'll be more enthusiastic about encouraging thinking outside the box when there's evidence of any thinking going on inside it.
-Terry Pratchett