I think that ending the monorail altogether would be like changing the name of the resort to Bob Chapek World. It's a necessary part of the overall image. The gondola's are just another form of transportation to other sections of the resort. It's not the cost of the trains alone that prevented them for expanding the system, but the cost of the rails themselves.
It's the upkeep on those rails that tells me their days are numbered. Why the cost is so high for maintenance is beyond me, considering the legacy technology in use.
It'd be interesting to hear from either of you what exactly is that cost of the upkeep on the rails and how you came by that knowledge.