Three things, in this order. Udder, feet, and attitude.
A doe with a good udder and bad feet costs you every time you trim her. A doe with good feet and a poor udder costs you every milking. And a doe with both who fights the stand costs you twice a day, forever. Suzana passes all three, which is why she's still here at three months into her lactation. A gallon each milking. $400.
Ewe lambs are five and six months at $250. Ram lambs are six to eight at $200.