Auran could have improved built in rolling stock and locos and buildings, see through windows and interiors for the old passenger cars, wheels that actually move on the bogies, better engine configs etc. This could have been done for TRS2006, but the only improvement we got was adding industry capability to these old stagers.
Regurgitating the same old stuff with out reasonable detail improvement is a bit of a con. Both TC edition included as "extras" several buildings and trees from the original Trainz. Especially in TC3 compared with the new content included this old looks really dreadful. What was the point? For $30 Aus TC3 is better value than TRS2009 IMHO, and is supported by the developers not Auran, far more than Auran ever has.
Regurgitating the same old stuff with out reasonable detail improvement is a bit of a con. Both TC edition included as "extras" several buildings and trees from the original Trainz. Especially in TC3 compared with the new content included this old looks really dreadful. What was the point? For $30 Aus TC3 is better value than TRS2009 IMHO, and is supported by the developers not Auran, far more than Auran ever has.