Why would you want neg luck and a Bard who cant use masteries with full buff? First time you cant get your body, that thing is gone with no replacement. With 4 skills needed at 120 to make a bard, you will not have room to make a caster and melee toon.
One neg luck piece doesn't wipe out an entire suit. I've seen ZERO effect from having 2000 luck vs. 1000 luck. I'd rather have average luck and a solid suit than high luck and be a glass cannon. Still, the Negative Luck is what devalues the piece, far more than the inability to be blessed or insured. And, the suit being half bard and half warrior type skills doesn't help its value, either.
I've not used bard masteries on my bard/tamer since I got a taming 3 to go with the 120 real taming skill. Note that that's a 3 skill ring, not 4 (and my B/T usually runs with 3 of the 4 bard skills anyway, with most of my equipment bonuses to skills being in Magery). Or course, I rarely used Disco or Peace masteries, and typically used Provo masteries with my 120 natural provo. I'm not saying this was a great piece, just usable to the right person, and possibly valuable to others as a museum piece.
And, again...
So, you're telling me that everyone's game play before AoS was 100% sitting in your house, cowering, afraid to lose any equipment? That's what ANY argument against any and all Cursed items potentially having value is saying. Period.
I've used 1-2 cursed items on some characters for years without losing them. Then again, I'm a PvMer that prefers playing with friends, not solo.