Thanks everyone for all the help!
So from what I think I understand this is how it goes?
1. GC = Pre 50 armor/ weapons, Early 50 armor/ weapons?
2. Tomes = End game armor
3. Dungeons = Somewhere in between?
Order of importance I guess when it comes to equipment I guess would be?
GC < Dungeons < Tomes
I just want to prepare for level 50 and the end game. I don't want to look back regretting doing something I should have waited till later. Haha. I'm sure we all know how that feels. xD