I got my 3 hard cases from a proper auction. Think the total was under £40. Ugly and beaten up, but i can stand on all of them and whatever is inside is sound.
Personally i like them, but they are a royal pain in the ass to try and store. But as i have the room storage wise when they are not in use, its a little bit of peace of mind when i need to leave something in the van, ill put a chain through it onto the van bodywork somewhere, not that i try to leave my van in dodgy places.
Super soaker 3000 (water), nerf fang (foam), noisy cricket (energy), m41a pulse rifle (10x24), Gat gun (.177)