The Walmart here in Frankfort, KY sells night-crawlers, 24 per container and I've used them for years without issue.
I recently purchased a pacman from LLL reptile, but have had no issues with it eating a variety of foods. I haven't fed it any mice yet, but mine seems to love crawdads...Eats the heck out of them. It eats about every other day and I try and give it different foods on a weekly basis, but nightcrawlers are it's primary staple.