I think the monorail is inevitable

I bet the developers at EA have talked about the Monorail many times but have avoided it for the very reasons people have listed here. Great in theory, very difficult in practice. But it would be a shame to waste the Monorail idea by just putting out a building that is the Monorail wreckage. I don't see how that amounts to an event either; at best, it'd just be worthy of being an FP prize. If you want to make a whole event like Stonecutters, you need a working Monorail with stations.

But I'm more in favor of a big Monorail with tracks than some others are. Frankly, if you don't have much land, couldn't you just downsize your Monorail? It wouldn't need to circumnavigate your entire town. Also, the track and pillars wouldn't have to be huge; they could be made thin and only one square wide to avoid taking up too much space or obscuring buildings and characters. Personally, I wouldn't enjoy having to demolish my whole town to place it, but I could acquire the train, then buy a bunch of tracks to store and place whenever I had the time and opportunity to gradually work on it.

Plus, what other great event ideas are there, other than the holidays? Whacking Day and Stonecutters have now been done. The Monorail is an obvious next choice.