Just for the record, I fought changing to DC simply because I hate the way it looks and I love the quiet elegance of Majestic. Yeah, yeah, it's all about fashion :P
Yeah, Armie... I don't like Majestic on the human girls though. Looks like a nightgown. DC and Nightmare FTW ;) In fact, my Necro has Nightmare robes waiting for her when (if?) she hits A grade ;)
And on my SE, I'm happy he has Tallum robes. <3
Good luck trying to PvP in NM Robes. You will die before you get a nuke off, Lol.
I tried NM Robes on my Necro, and got rid of them in the same day (traded it for a Tallum RObe set for my SE, so she wouldn't get bled/poisoned in FoTD so much :p ).
NM Robes are borderline useless in PvP for a nuker, and even in PvE they are useless because you will find it harder and harder to XP as you get nearer and nearer to 7x levels with that set. DC FTW.
NCSoft is only doing that to force people to use other sets by giving them incentives, but everyone will stick to what they have because it quite frankly is DC > Tal > Maj > NM for a nuker. Healers can wear Majestic and get away with it, Rechargers usually do for the MP (the regen is useless, and non-factor).
The only characters I see wearing NM set alot are A Grade Overlords. Usually by the time they are level 70 they have switched to DC, though. That is only because they are M.Atk-limited (like necros) for landrate and cannot apply +INT tatoos to that class.
Casting Speed on gear is generally much > than M.Atk, and NM does not have a good enough bonus to justify going from:
+15% Casting Speed and +2 WIT, +7 Run Speed
to...
+0% Casting Speed, -3 WIT, No Run Speed
The Para Resist is much much more useful than the Sleep/Hold Resistance.
NM is for PvE (and is pretty bad IMO even for that), and DC is for PvP. To put PvP bonuses on such a crappy armor set is quite frankly an insult. Nukers use DC Set all the way to level 8x for a reason...
The casting speed of a Necro in NM Robes with Acumen and Zerk is less than that of an SPS with DC Robes and no buffs... Necro with NM Robes is getting casting speed in the high 600s with NM Robes, and low 900s with DC Robes. The difference is too big, and the set is useless as a result [to nukers, at least].