I have the Mercury and the dark gray Vanderbilt. I had Train America upgrade both with new smoke units and DCS (They sent the Vanderbilt to Timko first) And yes Lionel did over-produce them and one of the big issues was the fact that they missed the color so bad on the first one. However that was in 1999-15 years ago. I believe it takes 7 to 10 years for the train market to absorb an engine. If a manufacturer can wait at least 10 years for a re-issue there should be more than sufficient demand for a profitable re-release. If they do a build to order on the Vanderbilt I think they would be pleasantly surprised at the number of orders. I'm in on this one I love the Vanderbilt.
Scott Smith