I've never seen where the BL were more than the others. Strange. I've seen Marans at Aden's be more than those breeds but typically all of those chicks were the same prices.They have just a few sponsors. I suggested this but they wanted to keep it small business only. They had a lot of coop submissions but there are a lot out there that are not what you would want to show for proper chicken/animal care and that's why they do Vetting. They purchase sanitary kits for each coop site, wrist bands, maps printed etc. and that's about it as far as expenses. Real attention to sponsorship is not there and many local feed stores and such were never talked to. Not smart. I guarantee Shoppers was not contacted.
The DW and I were there the other night and saw the chicks. They had BR, BL and BO I think. The BL were $1 more, is that typical for that breed?
I think your broody should be having chicks hatch in a few days, how is she doing?