http://www.acousticfields.com/home-theater-melbourne/
You may not be a fan or even know of Dennis Foley, above is a room designed by his company "Acoustic Fields", and below a quote regarding his thoughts:
There is no correlation between sound quality and money spent. You can take a 3,000 system and put it in a good room and it will sound like 100,000.
You can take a 100,000 system and put it into bad room and it will sound like 3,000.00. Its always about the room