Okay, so update - we went to the local Morrisons (another chain) over lunch and got 18 eggs (they are sold from trays that you box yourself, but we just took half a tray) for £5.40 (so, what? US$6.82) The eggs are sold by the egg too, 0.30 each, so we could have bought any number we wanted really. They are also free-range. Remember too, in Europe eggs don't need to be refrigerated because we don't treat then to remove the outer layer.