Can we not start with the hysterical posts on this again, it's been done to death here
- The monorail vehicles are aging, we all know that
- They need replacing, or modernising, we also all know that
- The wiring is fine, it was replaced when thales did the automation system, again we all know that
- The beams are also fine and there is no evidence to suggest they are even close to needing any replacement, even the cheaper epcot ones. At most the epcot one needs a new top coat to smooth the ride out a tad.
The monorails go down all the time, your one time experience 5 years ago wasn't an exception or unexpected. Case in point, in September twice in a week I got stuck on a monorail, followed by a late kickout at MK where a monorail stalled coming into the station, shutting down the network at its busiest time and causing a ~2 hour delay waiting for boats.
One thing to also remember - theres absolutely nothing wrong with the frames of the monorails, so should they decide to they'll just take one out of service a time, completely gut it and replace its motors, fix the door design flaws, sort the AC out etc and they'll happily go for another 25 years. A fair chunk of the monorails issues are simply down to a lack of maintenance. Maintained correctly the current fleet can theoretically stay in service for a LONG time, no matter how much we'd all like to see shiny new modern trains.