they offer free shipping. I have been looking for large mealworms myself, but seems like alot of the farms are out of the large right now. If you google in where to purchase, you may find a cheaper vender. There was a thread not too long ago about raising mealworms, and on there, was a link where to buy them from. I go to the worm man.
I make my own, just get you a five gallon bucket and 20 lbs of ground corn mill, 3 lbs of non-medicated chick or laying mash, and about 2lbs of dry corn, add you about half gallon to gallon water stir to thicken, but not sogging, set under your barn, the mill fly will find your bucket and you will have mill worms,