I think calling someone 'stupid' for maintaining their car to a relatively fanatical standard on a forum specifically for the more intricate details of that particular car is a bit of a dick move.
I can afford it and like to keep my car mint. That doesn't make me stupid.
What's the saying? A something and his money are soon parted? I can't for the life of me think what that 'something' is.
I'm only messing with you, but I'm sure many people will agree that there are no benefits in changing long life spark plugs at every service. However, I'm spending a considerable amount of money on my Mk2 at the moment. Some might say that, that was stupid.