A lot of gamers flock to PC for the customization. Whereas consoles take care of most of the guesswork, those who really dive into PC gaming can tweak just about any aspect of the experience, including the hardware itself. On top of that, installing new tech is just the tip of the iceberg — after all, what's the point of spending all that dough on beefed-up hardware if the casing itself doesn't look the part?
Granted, most custom-built PC towers usually aren't all that impressive — most people are happy with a few extra lights or some fancy glass paneling. That being said, there are some modders who really take things to the next level. Take Sander van der Velden: he wasn't happy with some extra tubing or LED fans, so he built his entire case from the ground up as part of MSI's "Pro Mod Season 3" contest.
Also, it's about as far removed from a "regular" PC tower as you can get: van der Velden turned his custom case into a Venator-class Star Destroyer.
