Many leo breeders feed mealies exclusively and if I recall correctly Ron Tremper is one of them.
I purchased my first leos last August and have not fed them anything else than mealies. (gut loaded for 24 hours prior to feeding)
I hate crickets and the idea of raising crickets is even worse.
I breed my own mealies, it is cheap and easy, you can also store them in your fridge for a while.
Crickets stinks and dye relatively fast.
Phoenix Worms are also great (great source of protein)
Deborah do you have any links to keeping and breeding your own mealies? The cricket thing, as I said, is the primary thing holding me back at the moment.