I almost did that. The critter keeper, food and other stuff was going to run me about $15

My res don't eat enough crickets to justify spending that much. Not to mention the creepy cricket sounds they make. Ick. I kept them once, when I had firebelly toads because they ate them every day but I didn't close the lid properly once, and I had 50+ crickets running around my living room. Took me an hour to catch them all. Never again.
I buy Fluker's Freeze Dried Crickets. They're gutloaded with calcium. I paid $14 for the 1.4oz jar, but since I only give them 2 each every week (sometimes less) it's lasted me about 2 months already, and it's still more than half full. Definetly the cheaper, easier, cleaner, less icky way to go.
The things that come to those who wait may be the things that were left by those who got there first - Steven Tyler