The Cooler Master Stacker 832 may cost more than most other cases, but you will receive an incredibly large and wide case with well placed features to make installing parts a breeze. Using the case is incredibly easy as well and all pieces which are used often are of very high quality. Cooler Master has chosen to utilize steel and plastic for certain parts of this case. These materials are well chosen most of the time. A steel hard drive cage is quite alright, while the use of plastic clips to secure the mounting mechanism for the optical drives is not a very good choice.
But the overall performance of the case with its well placed I/O as well as quiet fans make it easy to overlook this, especially since you are still free to secure the drives with traditional screws, of which Cooler Master has included more than enough.