It doesn't matter if the person letting their porche sit in a garage is deriving equal or more pleasure than a person driving. Just because you don't like it and disagree with how something is done; doesn't mean someone can't derive similar or greater pleasure. Just because it's a 'waste' from your perspective doesn't mean it's true for others. For me it'd be a waste to cook a steak rare because I don't like that, around medium is perfect for me. For me it'd be a waste to put cola in fine scotch but I don't care if others do that, because we are all free to consume any product in whatever manner we choose.
Though in certain circumstances, I do agree with you. If I was at a party and there was two bottles of Johny Walker, one blue and the other red and only myself and one other person were drinking them, I'd tell the other person to fuck off and drink the red label if they were planning on mixing cola in. If it was their bottle alone, I wouldn't care but in a situation like that, I would.