I had always heard about the "train" stage, but I didn't fully appreciate it. It has been going on at our house for several months now. Nate took Will to the hobby shop the other day to see the trains. The owner of the store gave Will this old train. Needless to say, he was thrilled! He hasn't stopped playing with it for the past 48 hours...he even slept with it! I awoke this morning to the sound of its whistle blowing from him pushing it down the hall. If only we could all be so pleased with something so simple!