I would get them but the pricing is insane. Through the introduction of some new cheap NPC sold gear the prices for Demi 3 dropped to 50-60k. Masterfield, however has risen up to 1 million gil. You need at least 1 master demi for each forager piece and lots of other extremely expensive materials. For supras you need 3 master demies + 10 field 3, which makes a tool you don't really need cost almost 4m. Add to that the costs for forager gear and secondary tool and you will be somewhere around 10 million. This will never pay off. They NEED to add new ways to get master demies in the new patch.