Basic reasoning tells me that the shorter the length of any cable the better the signal. But- is it relative??? For example, how much difference if any will there be on a 3ft "quality" set of Audio RCA's in relation to 6ft or 12ft length?

The reason I am asking is that I found a good deal on a 6ft Audio interconnect but I really only need 1meter (3 feet) or less. So the question comes in - should a spend a little more for less wire??? Hmmmm.... - Any ideas or opinions would be appreciated. Also If anyone could direct me to where I could get some scientific info on this subject, that would be great.

Tim