Any Idea why they only created Three Mark VII Monorails? Does Disney no longer plan on running more than two monorails at a time?

R.I.P. Mark V Purple

They're somewhat keeping a 2 train operation as far as I know, though at least 1 one of the trains is prone to mechanical failureon any given day. I just got back from the DLR and I saw Red and Blue operating. The CMs say that they did some technical modifications to Red but they don't know exactly what, they're just happy that she's back. Red seems like she isoperating flawlessly for once as opposed to Blue, which broke down no less than 6 times during my 3 day visit. As I rode in Blue's tailcone by myself one night, I could hear the frame grinding against the beamway. This did not happen with Red and I think somebody's got to do something about it and FAST!