I don't usually post in these forums, but, I just want to share my view on Blue Mage (because that's what the forums are for! yay)
I've played a bunch of MMO's since WoW vanilla (yeah, I'm not an Everquest / Ultima ancient, sorry). Every MMO always try to focus on endgame content only and farm resources every single day, or farm PVP gear. Basically, in every MMO I played you either farm for PVE or PVP endgame. Even if some have some side content, it's not that fun.
That is true for FF14 (aside from the PVP gear part), HOWEVER, FF14 does have extra content that is not directly linked to the endgame, and it's actually fun. Triple Triad comes to mind, along with the Hildibrand questline.
So, sometimes I want to login in FF14, but, don't want to do raids or farm dungeons, it's a game, everyone needs to do what they find fun. I usually ended up doing beast tribes dailies or something. Today I tried Blue Mage, and I just loved it. It's a class you can play casually, do some experimentation with builds, and enjoy the ride of playing it. Did a dungeon run with 4 Blue Mages, and had a blast, since you can spec up different spells, so, no one was the same. We had tank / healer / DPS from just 1 class. (of course in high level and raids it will be DPS only).
I heard some people say it's useless. No, I'm sorry, but no. If you are having fun with something, it's not useless.
WoW had archeology, a profession that is "useless", however, it had a lot of lore content, and exploring the world was something that was kind of fun doing, and by the end of it, you got rewarded for it.
Not everything needs to be a competition and elitist. I loved what they did with Blue Mage, and hope in the future he gets implemented in the roulettes, but as of right now, it reminds me of a cross between Pokemon and Guild Wars 2.
Good job, love FF, best MMO ever. Blue Mage is tons of fun.
GG WP