fare point, but like anyone, if you take care of your kit, and carry out regular checks, should a problem arrive, the warranty covers the problem, also, the guys who make these vest will up date you when improvements are made. as well as dependent on the areas / feild of work you are in these can be up graded to suit the situation.
No vest / kit is 100 % safe, no matter how well you look after it.
i was pointing out that there are places you can go to get good reliable, and fairly priced equiptment, the warrenty is just peace of mind.............