The same thing costs around €650,- here, without the case. And I saved some cash at that, with that shop not offering the m5a97 PRO and opting for the blue edition instead of black on the HD.
Add in some desirables like a 2nd HD and a separate soundcard and it climbs another 100,- easily. Then maybe you need a complete system with monitor, mouse and keyboard; another 300,- perhaps. More capable CPU cooler? Another 50,-.
Keeping consoles in mind as a gaming solution, and you quickly spend twice as much on a desktop.
At any rate, it isn't as expensive as it used to be, and getting cheaper all the time.