Antiques Roadshow is in Madison, WI on 7/11.
Lionel Trains Price Guide - For Antique and Old Lionel Trains Prices Sets - Model Toy Trains Catalog
Don't be in a rush to dump them. You may be sitting on:
1. Some extremely valuable stuff.
2. A very solid investment.
If you hang on to those things until retirement, you might end up with quite a nest egg.