Back in February 2011 I found a 2010 female bee advertised for $600. This wasn't a hatchling either, she was probably around 6 months old at the time. This was with a "big breeder." I just checked another big breeder's site and see females bees going for $550. Given that the one available now is maybe a month or two old and is less than half the size the 2010 was, I would say prices are staying pretty steady.