That sounds extremely pricey... considering chickens are 5.99 for a HUGE one on the rotisserie @ Costco or 7.00 at other super markets around here ready to eat. 
While this is true, but he is very close and that is worth a little these days.  I did go back to the guy and buy 5 black australorps and a dozen farm eggs for $18, which was a much better deal.  And a complimentary glass of fresh milk.  I mean fresh from the cow.   The black australorps will provide 25 eggs a week.
Then a couple weeks later I went and got 4 dozen eggs, but they wanted $3/doz each.  They didn't have too many that day, so the price was high.
Definitely supply/demand pricing going on.
These guys are semi-pro, and being in Houston makes it cost a bit more.  They had butchered 30 goats the third time I was there, to sell to local restaraunts as organic goat meat.  Houston is a city where people eat out A LOT, I believe it holds a record of some sort for eating out.  I can tell you that they probably made well over $1000 that day.  And in Austin, they sell the eggs for $5/doz and people actually drive to get them for that price.
Anyway, sometimes its worth it to pay a little more, to make good contact and friends with people who are living that sort of lifestyle.  Especially in a metropolitan area like Houston. 
I was trying to find a place to buy new zealand rabbits and most of them were quite far away.  It was disappointing.