Most of them are either taking winter break (aka slacking) or not POL lay yet. Well, quite a few of them should be at POL lay but they aren't laying yet because it's cold.
Let's let the emu decide:
Emu: continuously fill my stomach with delicious eggs and I'll stay inside your puny fences.
Oh wow! I payed $150 for Whistler (normal brown emu) when he was a few days old and I payed $350 for Limu (blond emu) when she was a week old!
800 dollars for a young adult emu!? Limu will be old enough to lay eggs this spring.... All I would have to do would be feed a few of their chicks for an extra couple of years.... Awesome!