Teleport used to be a gamble. Now, its basically a replacement for walking. People teleport everytime they so much as get the feeling someone else is around. If I play a class with teleport inherently, there's no reason to walk anywhere, or walk out of guilds, or walk out of ranking areas. IE, its one of the most useful spells in the game, whereas it used to be a spell that'd get you mob killed half the time you used it.