And I shall add to this that even when you hit 2000, Openings aren't all you should be studying. I'm 2082 right now, and I'm studying 6 books at the moment, ONE of which is an opening book. The others? 2 Game Collection books, 2 Middlegame Books, and a book on Calculation.
Middlegame and Endgame studying doesn't end when you hit 2000!
Following the hallowed traditions of @Daeth, @YourASlob, @MrAwesome, and @MonsterNoName, I post the following two bold (and bald) assertions --
Generic middlegame and endgame knowledge is DECISIVE for your playing strength. Openings, are (mostly) just a black hole for your study time. This is especially true when you study many opening systems, and keep switching them round, hoping to find that "killer system" to use. Instead, your opponents easily transposes the opening into something you haven't studied, and you are SOL (shite out of luck), so to speak.
So Wise Up, and get your priorities straight.
Against Vegetarianism, I assert that Pig is King!
Compare BBC article on same --
http://www.bbc.co.uk/news/magazine-20970092
AND, if you INSIST on studying (many) openings while you are still a weak player, at least hire yourself a chess coach, and he will rein in your excesses.
*[Edit: (as of November 2013) -- about 130 posts below have been lost because of folks leaving the Chess.com site. As a result, our discussion, while still funny, can be a bit disjointed at times. I apologize in advance.]