Reasons to let the human race live number 7

Convenience. We are refining it to a fine art. Although the world doesn't quite dance to my every whim (as indeed it should as I sit in my chair of power in my all-powerful evil lair... but enough of that...) we do have availability.
Specifically listening to random trance music and having an awesome (dude!) track come up and then be able with a few mouse clicks to buy the album.
Life, luxuries, money.
Well, I'm sold.