The answer is yes, but not because it has forged pistons. It is worth paying extra for a car that has been competently reconditioned reasonably recently and for which there is evidence in the form of receipts, dyno sheets, maybe a compression test, road test and examination by someone who knows what to look for. If you can get a well looked after car then its is likely that the clutch is good, brakes and suspension have been properly maintained etc. GTR owners will tell you that they are money pits and if you can avoid expensive repairs soon after purchase so much the better.