Magoo, I wasn't sure what type of action you were after, so I addressed it all. I get the crowded bit, I was really just playing with the program. And I run a lot of steam so adding another reverse loop would be important for me.
Don't under estimate the power of trolley with kids. The old Lionel bump and go street cars and maintenance vehicles are mega fun for kids. And if elevated vs integrated, like above, can be simple and removed easily. I think the coal or saw mill setups are the most cost effective "bangs", till you can "swing" for a freight or construction crane, or till you can "lift" your wallet enough to afford the intermodal crane. Other than adding a loop somehow, to get two loops, would be my only other suggestion.
