Having an endless grind kind of goes against the reason we are doing this which is to make crafting have value. If everyone gained value from crafting your justice bringers or spider bows then no one will be willing to buy them for a profit. Increasing the grind also just delays the inevitable where everyone eventually maxes out their crafting and the same issue persists. I don't think it's a fair assumption that we can make that in a couple years time, a lot of new players will exist that would be willing to buy goods off the veteran craters. Even if that did happen, it would mean new players that wanted to craft would never be able to catch up or sell their inferior products for a profit. The exponential gold cost per mastery idea is practically a hard cap at a certain point. If the pricing went like 10k to 100k to 1mil to 5mil then you'd almost never see a person with 4 mysteries except for the Uber rich or Uber dedicated crafters.