Okay, so i'm torn between
A) Buying the Necron Battleforce MKII
or B) Spending the cash on a few Elite choices and more Fast Attack.
The pros of the battleforce is that I could always use the Troops, and the price is pretty much getting me an extra unit of troops for free. Plus, i'd be replacing my personal fast attack option (Wraiths) with a more strategic one (Destroyers).
The pros of B) is that i'd have some Flayed Ones and Pariahs to add to my flourishing army, as well as at least 1 more unit of Wraiths.