Sale price will depend a lot on market. Summer time I sell Coturnix chicks for $5 each, but the market where I live is really good. Winter time I make deals based on quantity but don't usually give a list price. Most of the winter I get around $3/head for coturnix chicks sometimes less. Button quail chicks don't have a very big market and I actually quit selling them because too many people were killing them. I sell adult buttons for $20 a pair. You will get exactly as much money out of it as you put in effort. Don't raise more birds than you are prepared to eat at any point in time.
I've been breeding japs for 5 years now, gone through hundreds and never had a broody until one hatched 14 chicks out on February the 1st this year (the white quail). She had gone broody before and served half term but had been brutally beaten up by a hen wanting to use the nest to lay her eggs which ended up with both hens scalped; the broody now having a permanent scar which you can see in the photo. She came off the brood and the eggs hatched a week later in the incubator.
I have just separated her off today and am hoping for the best! According to her first owner, she's a great mum! 
