point of failure with my current case is the power on/off button, which was made of plastic. the plastic "spring" dry rotted after a few years and collapsed. that was the deal breaker. before, the rubber mounting straps had dry rotted and broke, so i mounted my hard drives a different way, but i could live with that. now, whenever i look at a review that doesn't say that the on/off switch is made of metal, i don't look at the review. i think this should be an important consideration in your ratings. if there's a plastic part that is a user interface, the product needs not be considered for review. i realize this will eliminate a lot of products, but so what. who wants a case with a broken on/off switch?