Actually ... I confess ... there was a time last year, when near the end of an end game I took part in a fun group of players who sold all their waggons and invested the money ... and we counted the places that we could get to that 2.147 G$ number.
At the end, when you can sell all your waggons and engines ... as you cannot take the money to next round ... why not have some fun?
You still get my respect
After it is a game, and some people forget that