Look, this argument goes on and on, and there's nothing anyone can do to stop it. So I won't continue, except to say this: I am sorry for calling you an idiot, but I disagree. Monoliths do allow people to take WBB rolls multiple times, and a Tomb Spyders or a Resurrection Orb negate a large penalty, but each of these methods has a drawback:
1) Tomb Spyders are 55 pts. for doing nothing but helping with WBB and making Scarabs. Don't disagree, I mean they can attack but with BS and WS 2, good luck hitting something. They also have to be within 12" of the model they're "helping," which is often dangerously close to the frontline for what is, essentially, a noncombatant unit.
2)The lord needs to be within 6" to use his Res Orb. Since he stays with one squad most of the time, it means you can take out the other squads while he's distracted. I find Wyches are excellent troops for this, as power weapons prevent WBB. Plus, the Res Orb is 40 points, and so, since most players love using Destroyer body and Phase Shifter, a Lord with an orb means no VoD, which I can understand *****es the *&^$% out of opponents.
3)Monoliths, as far as helping with WBB, need to be within 18", and even when they do "help" Necrons with WBB, the Necrons end up near the Monolith. An army like IG or Eldar with tons of Blast, Ordnance Marker and Template weapons will hose a Necron army using Monolith, Res Orb and Spyder, as they will be punished for sticking too close together. Again, like all armies, it's all in the dice, but Necrons really don't have an advantage. In fact, GW saw how powerful WBB was and purposefully gave the necrons a big disadvantage: sadly low Init. Since the easiest way to keep 'em down is to use power weapons, troops with lots of said weapons like Striking Scorpions will mow down Necrons like freshly cut grass. In the end, Necrons are a tough, had to kill army whose main weakness is a lack of versatility. They do only one thing, but they do it very very well. Outmaneuver them, prioritize your targeting and use good strategy and you should be able to beat Necrons every time.