Kind of hope that grade 4&5 dark mater is a little bit spendy to buy from the npc. that opens up a nice middle market for gatherers and people looking to offload extras gained from questing.

As for the change its self, all i can say is it's about darn time. Back when they implemented the repair and durability systems in beta 1 i knew that having so many specilized repair mats would end up causing the situations we see in game today. People clogging up the inventory with the mats, Weapons/Gear with hard to come by mats would be devalued by the community due to the shear costs involved in keeping them in good working order. The vision started to fulfill its self with the latest addition of nm gear. Steel and mythril nuggets to repair weapons and it was only going to get worse people. What would have happened had the system stayed the same and darksteel and higher tiers of materials became common? I'm personal glad that i will never have to go out and hunt down say Damascus nuggets to get my weapon fixed.

As a part time crafter and full time vagabond of eorzea I welcome only having to carry one or two items to fix my stuff and the stuff of others.