I was torn between 3 and 4 stars for the Railroad Museum, I went with 4 since there is a drought of kid friendly things to do in the area and the kids there were having a blast.
Went here with my Fiancee on a day date, neither of us have been before so decided to give it a go. A ride on the train lasts about 40 minutes and cost $10.00 for both of us. The ride takes you from the station north east toward Vegas just past the Railroad Pass Casino, about 3.5 miles. Since it's the Holidays they had Santa and Mrs. Clause on the train which was kinda cool.
I was leaning toward three stars b/c the museum part seemed disorganization and cluttered but then again this is Southern Nevada and anything that doesn't rob tourists of their money isn't important and doesn't get the attention it should. This could be a five star cultural and tourist attraction but I don't think it ever will, too bad.
Bottom line if you're in town bring your kids here and take a break from the casinos. Oh and check the schedule for departure times and bring cash they don't take credit cards.