There are several major factors you must consider when selecting a new case for your current system, or selecting a new case for a new build....
Sleek and stylish design; filters on all intakes; support for a full-sized graphics card; support for ATX power supplies; support for tower CPU coolers
Various systems interfere with each other; Cleaning filters requires opening case; No external ODD slot; Power plug can be difficult to connect; Only 3 zip ties in the bag