So I was initially planning to level mining, blacksmithing, and armorsmithing as I leveled my GLA in order to gear myself up as I level. The idea being that I'll be able to do a better job tanking once I start endgame dungeons.
However as I looked into it further it seems it may be a waste of time since dungeons will always have better gear than what you can craft. So, it sounds like it would be more efficient to re-run the easier dungeons over-and-over until my gear is high enough to start the harder dungeons than to spend the time leveling these 3 DoL/DoH jobs.
Is there some extra perk to mining/blacksmithing/armorsmithing that would make it worth my time to level these jobs? Right now I only care about making myself the best possible tank.