I sell by pure weight of warms, not mixed with compost like some sellers, so you know what you are buying and what you are getting, if mixed with compost you don't know how many worms you get.
I don't have warm business, I grow for my own use of compost in my garden, I feed them with healthy organic food of vegetables and fruits and prepare bed using coconut coir. I just have extra warms so selling.
You get lot of babies as well. So, compared to online sellers you get healthy warms and lot more in numbers because of babies. You get very weak warms from online purchase and some dead, babies don't survive.
$25/ half LB - you get about 600-700 worms including babies