You could have it both ways. Offer to supply a period pad and let the new seller have it fit to the gun. That way the exact LOP can be made to the new owners needs. White line pads are a definite turn off for a lot of people. Periods pads are an improvement to me but not others as you just heard. The impulse to dress up a gun for sale is understandable but not always cost effective. If the pad in question is as hard as a rock I would just replace it with a period pad anyways.