Right now Necrons have army-wide WBB and Gauss weapons (auto-glance on a 6). The Immortals (28 points) and better-left-at-home Pariahs (36 points) are already Toughness 5, I sincerely doubt they'll raise a Warriors toughness to 5. The Pariahs cost is close to Terminator levels for a 3+ armour save, 1 attack, no Inulnerable save and no WBB. How much is a single Death guard with FNP and a 3+ armour save? Hit by a unit of standard Assault Space Marines the "Elite" Pariahs fall like flies before they get a return attack (Init 3). What doesn't fall immediately gets swept at the end of the round. Would you pony-up Terminator point costs for that in your army? And to add insult to injury, charge $15 a figure for them?
My sincere apologies if I have offended anyone with my views on FNP vs. WBB. I play Necrons week-in and week-out and truly understand the strategical impact of changing WBB to FNP will have on the Necron game. I get frustrated by non-Necron players espousing that there is virtually no difference between the two.
Example:
With standard WBB - A unit of 5 Necron Destroyers are shot by Space Marines (Devestators/Long-Fangs, etc) with Lascannons at 48", 4 Destroyers go down. The next turn 3 Destroyers get back up with WBB for a 4 Destroyer strong unit that will move up 12" and get 12 shots back into the unit that hit them, 3 dead Space Marines. Rinse and repeat.
With "it's virtually the same" Vaniilla FNP - A unit of 5 Necron Destroyers are shot by 4 Space Marines (Devestators/Long-Fangs, etc) with Lascannons at 48", 4 Destroyers go down and are removed from the game. The next turn the 1 Destroyer strong unit moves up 12" and gets 3 shots back into the unit that hit them, 0 dead Space Marines. The next turn the undamaged Space Marines put 4 Lascannon shots into the final Destoyer, wiping out the unit.
How is that "virtually the same"? Anyone? Beuller? Beuller?
PLEASE don't paint my Necrons with a plain Vanilla FNP paint brush because it's the "simple" solution for people who don't understand the difference.