Plastic, metal and resin each have their place for different reasons. I personally prefer metal simply for the heft and durability, especially where narrow pieces like gun barrels are concerned. That being said, it would be a great disservice to IWM if these minis were restricted to being only box set plastics, not to mention to some fans as well. Simply put, I would gladly buy a lance worth of the Warhammer alone, but I would prefer not to have to buy four box sets to get them...