The question of "why" is perhaps the most perplexing thing, in that the answer (if really there is one) never really makes much sense either.
Why did the Cabbage Patch doll cause mother's to literally break fists out in department stores to get their hands on one? Why did The Backstreet Boys become such a popular musical group? Why does Paris Hilton make so much money out of nothing?
If you find the answers, you may want to look behind them...the Holy Grail may be somewhere nearby.