Some systems will only cost you a few thousand dollars while others depending on how elaborate you want to be could go into the tens of thousands. For people who are knowledgeable in electronics you could very well do the installation yourself and save a little money, but if you factor in the time it will take you to hopefully get it right, it really is a no brainer to just pay a professional to install it for you. Home Theater Installation isn’t that expensive, considering what you paid for your equipment.