I don't know about other servers, but if prices keep falling, it just may be the horn. Depends on how well you make money besides daily Dynamis, I suppose. If you're a career mage, doing both horn and MAcc staves really is an inventory saver, and you're better for both.
Too bad all the staves are the same model, I'd like an aura for each element. Expanding amination for MDMG, condensing animation for MAcc.
Edited, Jul 2nd 2012 2:04am by tertoonetwothreefour
The toughest part of the decision for me is that I'm not sure how much inventory space I'd actually gain. I use the HQ elemental staves for my summoner as well, and doing those magian staves along with MAcc is adding inventory, not taking away from it. I never touch my white mage anymore, and my black mage wouldn't benefit from the staves I'd be doing. I'm either on bard or one of my melee jobs the majority of the time.
And yes, the horn is getting easier and easier to get. Which is nice, because it's been a dream of mine to own since the day I fell in love with bard, but at the same time, I'm looking at the empy harp fully upgraded to give an extra two songs, and that's hard to pass up.