Of course its worth the time if you're skilled enough to go far. Otherwise, don't waste your time or your money and just learned to play MTT. Great schools offer great lessons such as PokerxFactor, Stox, CardRunners etc. Better to invest your money in there than 1 buy-in into a MTT where you happen to be outskilled. Not saying anything about how good you are, havent seen you play but just stating my opinion.