I would have to agree Mike. The main reason I play with MVs is for the pure joy of turning something old, broken and unwanted into a piece of working history.
If you figure that playing golf, boating, collecting trinkets or what have you all cost money, then really how is MV restoration any different?
When your golf game is over, it's over, the money is gone, you have nothing to show for the money you spent.
I am happy if I can break even on my expenses in parts etc. Labour cannot be factored into the equation...