Thanks Leg but I prefere the steam engine,so the emerald is incredible for me when i see it,but isn't the best.
The best for me was the good old 7720;ok it is my first lego train,have the motor,the signal stop the train,there is a railway crossroad(and it fit with my platform road),and there is one train driver,one driver for scraper(and it fit perfectly with one waggon)the ramp,another minifig and that strange device for change direction of the train.
That is a full set,for a busy city like mine(30 years ago).
I hope in a new steam engine from TLC(why don't have made the new H.P. train in that way??).
The emerald (original set)have only one problem and for that is not on the n 1 position,why i have to remove the fireplace for put the motor??is one of the best part of this set!
But we are lucky,we are afols and we made mod,so my emerald now is ad 4-8-4 and i have motor and fireplace on the same train.YES!!