Heritage tourists and the color of money

I am surprised to learn that each year Civil War tourists drive to Mount Vernon to see the home of "the man who freed the slaves".

How do they even find their way there? Bus trips? And do they go home better informed or utterly confused?

And what about the tourists who think that Mount Vernon is Mount Rushmore? (See linked article, above.) It would almost be worth acting the docent to meet people like that.

And as long as they leave some smart dollars behind, what business is it of ours?