Reached the 21st egg today. They've been laying for two weeks. $3.87 per egg, $46.35 per dozen. Still pricey, but better all the time.
I just fed some faulty numbers into a spreadsheet to get a faulty projection of when they'll be paying their own way. It shows the first day of 2030, the cost per dozen of my mostly small (a few peewee) eggs will be the same as the current price at walmart for a dozen large.
Faulty assumptions:
feed price won't change, they'll consume a sack per month (Last sack went a month and eight days.), every month is exactly four weeks long, production won't change, the flock continues to cost money but never makes money, I keep the same number of hens, and they don't get old.
In reality, feed price fluctuates, one sack lasts more than a month, when I get them in their final tractor, they
should eat more grass, so I can reduce feeding, production (and egg size) should continue to increase for a while longer, and if I
sell some eggs, that will offset expenses and upset the whole projection.
My projection is too flawed to show me what will really happen, but it has me thinking about improvements to efficiency, which is probably it's only real value.