Hobbyists who complain about the cost of coral. Don't get me wrong. Some of the vendors out there are unscrupulous, selling teeny tiny frags, giving them fancy names and charging laughable amounts of money. But, in many cases the laws of supply and demand, the rarity or beauty of individual corals, the time and energy that went into cultivating them, justifies the price. I am tired of hearing hobbyists complain about expensive coral, instead of just choosing from the thousands of affordable coral available. You can practically start a tank for free with leathers, GSP, shrooms, SPS, Montis if you make the right friends and when you are ready, move up to more challenging / expensive / rare corals, if that is what you want to do.