Think you may be correct Jebb. I don't venture over to [email protected] if I can help it. So many online places do it better and cheaper.I think it's 3 boxes for £7.
Work out what the crickets cost v the roaches, yes it will be more but I doubt it will be £10 extra, just think of the difference you will be paying not the total cost.
You might as well feed him what he wants to eat.