Mono = one
Rail = rail

They accomplish the same thing as a train, while being more expensive, easier to kill via vendor lock, and more expensive to expand.

They do have a place similar to guided buses, when you need an elevated rail, but have too many hills for steel on steel.

I would love to ride this.

Monorail takes all of the concepts of trains, makes it harder to implement, places a max speed on it, and introduces a thousand more little complexities. Just build trains.