Re: How much better?
you will always hit a point of diminishing returns. depending on people's hearing and eyesight.
some people cant differentiate 1080p to 720p. others dont appreciate surround. is 11.2 really better than 5.1/7.1?
etc.... all i can say is that each time i have upgraded there has been a noticeable improvement. although im not sure how much i would have to now spend to double the quality again. around £20k i would assume
its the same with cars. you can get an insanely fast car for £50k and then spend £1m and its not 20x faster (or even close)