Story of this server to be honest. DT time investment to reward ratio is ****. Baroness investment to reward ratio is ****. And as Bardakus said above, likely the same scenario for Catacombs. Every alternative way of farming other than metins should AT LEAST have some decent minimum profit attached. Most dungeons are luck based content, fair, but they should have a minimum bar of profitability to warrant the time and money investment.
This actually links back to the depreciation of Thief's Gloves and Experience ring. The reason there are so many is because metin farming in Red Forest is the most stable income source in the game for high level players. As such, all of them are using it as THEIR income source. If all alternative content provided at least some stable income generation with the inherent LUCK-based BOOMS, more players would rotate.