When we started rearing our girls 5 years ago, it was just before Hugh F-W and Jamie Oliver started preaching about growing your own eggs. We did really well for the first 3 years as everyone was just starting up. But then, things just went on steadily. For the first time in the 3 years we actually had POL. Before that they were going as hicks and pullets. We couldn't keep up with it!
However a lot of people have been put off by the price of feed, straw, whatever. I decided to retire end of last year, and two other rearers/breeders near us have done the same. Then another chap I know who buys his girls at 8 weeks old to grow on to point of lay put his prices up from £15 a hybrid to about £25 so a man told me the other week.
I only know the one lady north of Boston who still sells brown hybrids for about £5.50, but she doesn't rear them herself, although she says she does. Their beaks are clipped, so I think she has a friend who has a commercial farm and she buys from them and sells on at a little profit. But, saying that, they are lovely birds, nice and healthy!