For many years I didn't keep geckos or inverts because I couldn't stand the smell, noise and quick life cycle/death rate of crickets. Roaches are superior in every way and they certainly make the hobby much more enjoyable. Plus for larger scorps the larger roach species make much more sense than crickets. Once they have a food item in their mouths they tend to keep on eating so the larger the food item the more they tend to consume IME.Roaches do seem to be the popular food of choice on the boards.... plus it looks cool when they eat them.