It always comes back to the fact that min/maxing the game and focusing completely on efficiency ruins replay value of the game because for min/maxers there is simply only one conceivable way to play the game-- the single most efficient way. The irony of the min/maxer argument is that no game can be designed to have multiple absolutely perfectly balanced efficiency pathways. One method or strategy will always slightly edge out the rest and so that will become the new one and only way min/maxers can play without "lying to themselves and deceiving themselves" about how to play the game.
Thus the only way min/maxers can get much replay value of the game is to convince the developers to change the balance so that they have another new brief puzzle to solve. Three weeks after a new update the new most efficient strategy emerges and once again the game has no replay value for them. We have seen it time and again over the years as those who care only for efficiency complain that they are "forced" to do X by the developers. Sometimes X was upgrading blocks, sometimes spam crafting, sometimes killing zombies, sometimes spam questing, ...one time for a couple of weeks it was chopping down grass thanks to a bug.
I'm glad that I enjoy playing the game at a variety of settings and without regard to efficiency. The developers have designed the game to be replayable through conscious player choice --sometimes by changing settings, sometimes by choosing self-limits, and sometimes by choosing challenges and goals. When you don't care whether the way you are playing is the one solution to the efficiency puzzle you can suddenly do whatever you want.
And the great thing is that I'm just having fun and it isn't that I have to self-deceive at all. I just plainly don't care whether the choice I want to make is or is not the most efficient. The min/maxer can't comprehend that I simply don't think about it.
So,
@bachgaman, there has been another balancing pass to traders for pricing of goods, types of goods sold, and rewards for quests for A20. There has also been a pretty significant change to loot in general. It might be enough of a change to create a new puzzle for you to solve. I hope so, since I want everyone to be able to have some fun with the game.