IO
You miss the point. Not everything in life can be measured by the figures on a balance sheet.
You can buy something as fast as a Spitfire.
You can buy something more comfortable for touring than a Spitfire.
You can buy something with better aerobatic performance than a Spitfire.
But it wouldn't be a Spitfire.
To see one, to hear one, to sit in one and take in the smells whilst contemplating what those young men were doing in them 65 years ago this week.
And, I am sure, to fly one.
That is why you buy a Spitfire, not because it goes quickly and makes financial sense.
Edited to add - Even though I'd prefer a Hurricane.