I made the decision to breed my own crickets. (I live in an Apt. and roaches are not an option) I bought some "Bed a Beast" (The stuff you buy at the pet store that expands in water) put some in a 1 inch deep plastic food container and placed it in my adult cricket cage. Almost immediately the females started digging around and laying eggs. Hopefully in a couple of weeks I'll have some babies hatch.
I'll probably need to order a few hundred more to allow the babies to grow up but after that hopefully I can sustain enough live food for my beardie at minimal cost. I've got enough 10 gallon tanks that I can keep rotating them as an incubator, grow-up tank, and edible crickets.
I've got at least 30 females of breeding age now so hopefully at least a thousand or so babies will survive natures odds to grow up and be edible in a month or so. While those are growing I can use the ones I plan to buy soon from my supplier to breed more and start the process over again. Who knows, if things go right I may need to buy a few large plastic tubs to house all the crickets. I might even have enough to stock my local mom and pop pet shop and make a few bucks here and there.
If everything goes well all I will need to buy regularly would be cricket food and a few egg flats now and then. I can buy those online in bulk pretty inexpensively. Also when compared to store bought food the crickets seem to like the food I buy from my supplier better.
I've got plenty of calcium and vitamin supplement to last months, plenty of water crystals to last a year, and plenty of cricket food so I should be all set for a while.