You never know what Disney is planning especially if they feel they are a hazard.Sure, they should be able to pick up an additional 10 bucks out of that.
You could be right, but, it isn't like Disney (especially in Orlando) to spend a lot of money on complete overhauls which sounds like that to me. To be fair, I don't have a clue what extent the trains are being overhauled. It might just be a coat of paint to look new. I just think with all the money they have been spending on other things, if they can get another 5 or 10 years out of the old fleet, they will do it. Maintenance is cheaper then buying a new fleet at today's prices.