I could SWEAR that I read about this somewhere else... (was it in another PTR-World??)
- well, it is the same in PTR3 now, as well:
I connected a third City.
- the track that goes OUT of the city, shows a correct price with the mouse-over... but request the price of city-connection, when clicked on. (x8)
I found the post: was in PTR2 - German.