I am having my house built and now the sheetrock is not installed yet. I am planning for my 7.1 home theater setup. My question is the placement of the receiver to the TV. I have heard that when you use HDMI output from the receiver to the TV if the distance is like 6 ft then there is no difference between the $30 cable and $150 cable. 6 ft cable would be ok if I place the receiver under the plasma tv that I am going to hang. But I have another option which is aesthetically more pleasing. On the left side I have stairs going up, so that under the stairs I can cut a gap on the sheetrock and install an inwall entertainment system which will not take any space from my living room. But the cost of cables is my concern. I would need 18ft cable instead. Do any of you guys/ladies have any technical knowledge concerning the loss in the quality of the picture. If I need to buy the high priced HDMI cable for that long it would cost around $400. Do I need to buy those high priced cables in this case? or would you definitely not install the receiver that far from the TV for other reasons than cost?