When I visited Sydney a couple of years ago, I was gutted to discover that the city had enjoyed a monorail service, but this had all finished 2 years before I arrived. All that was left was a few stations with no connecting rail system.
I understand that the monorail wasn't universally popular with residents. For the Sydneysider, the system didn't go anywhere useful and there was quite a lot of visual clutter associated with a high-level system. However, as a tourist staying in Darling Harbour, it would have been brilliant for me and not just because I've never actually ridden on a monorail.
At least we can enjoy some video and watch another bit of the future, along with Concorde, which has already become the past.