You could make a hotdog, wrap it in five dollar bills and sell it for a quarter, and some people would still find something to complain about it. :-)
Sure, that would taste awfull...
But really, its a desktop PC tower case, for $119US they can include a 350W power supply... thats not an unreasonable expectation.
A lot of people bitched about the Sonata PSU not being quiet enough or not powerful enough so maybe Antec decided "fine, let 'em choose their own PSU for this one."
This case seems to be based on customer feedback. People said "where's the removable mobo tray", "make a Sonata out of aluminum and I'll buy it", "I don't like the door", "I don't want this PSU, why can't you make a case w/o a PSU so I can use my own", etc, etc.
So here you go guys, it's the case you asked for. Hope you love it!