The weight of the LP (without trem arm) had a naturally long sustain (which is what Nigel Tufnel was talking about) that you couldn't get on Fenders (the trem arm was also very light on strats) at that time. I also had a brass nut on mine which increased the sustain. Now you have the choice of a million pedals to get that effect. It is still a classic for me and I curse the day I was faced with the choice of eating and sleeping in a warm building or sitting, starving and freezing on the curb with my LP and no electricity.