I bought the Hogwarts set 2123140 that includes the dementors car and i also got the add on coach. I found it strange that the dementors car has silhouettes in the windows but none of the other three cars has people in them. Did all those kids apparate (sp?) themselves to school this year? Why do you think Lionel opted to have no people showing? The Polar Express cars have kids in them. I can't imagine that adding kids would increase the cost significantly. We do like the set overall.
And part two, why aren't there extras like accessories and figures and anything else Hogwarts? My comparison is also to Polar Express that has close to 2 gazillion extra things to buy and display.
We have both sets running on the floor under the Christmas tree on separate loops. The look good side by side. It's been a fun holiday season.
David