Meh, the 100n was cheapest in X2 275V, so I ordered 50 of them, but I had to pick 3n3 instead of 2n2 and 270p, and went with a Y2/X1, again bought 50 so should last a while.
Also took the opportunity to rummage through the Rapid clearance section, to stock up on some cheap jelly-bean type stuff, and make sure I got to the free shipping threshold.