You are smart to order extras. There a many reasons why someone may not preorder but later wants an item. Interests change, life situations can preoccupy and cause missing an order deadline. Financial abilities may vary and improve from the time all these orders were due sometimes years ago.
I passed on the Illinois Terminal NS1072 Heritage loco, but later had seen the loco many times and now would buy one.
Beth, great job of having great items available as best you can!
