I like the mystery surrounding him and all too.. But, why does everyone have such a fixation on him? Don't mind it, but I'm curious.
Because the unknown excites and entices the human soul, it's the air of mystery and intrigue.
@Name- I can't see House opposing NCR directly if at all. I mean, unless things have changed between now and E3, there are no Caesers Legion on the Strip, just Civilians and NCR troops.