I know it cost money to run attractions, but if Disney keeps replacing my favorite rides I am not going to be happy. They are starting to P@#$ me off. Granted I do not know the details of the new attraction, but Disney's track records for replacing popular, existing attractions with newer attractions is more miss than hit. I am thinking Horizons to Mission Space, Peoplemover to Rocket Rods, Original Imagination to JIYI to Imagination with Figment and The Living Seas to Nemo.
They have plenty of room, why not increase capacity by building a new ride? Instead of building new, they replace an attraction, losing that capacity. Then Disney builds another ride in its place that will be initially more crowded because it is new - making the parks more crowded.
Disney, please start renewing/refurbing your other classic attraction like you do with Pirates, HM, Space, BTM,and Splash. Maelstrom just needed an update, not a replacement. I feel the same about the GMR.