I think things would've turned out a lot better had they not built Epcot so far away. Ideally they could've built everything in that MK area and had a really nice self contained resort and just sold off all the remaining land.
I agree with this to a point. Building Epcot closer would have made more sense. At the time, there was no such thing as a multi-park destination (Maybe Six Flags Great Adventure in NJ - I think that was an amusement park plus safari at the time - separate tickets).
The monorail is awesome around the Seven Seas Lagoon. There's always something to look at. You get to go through a hotel! That, in and of itself, was cool.
The Epcot monorail largely sucks between the TTC and the Epcot parking lot where you finally have something to look at. It's fantastic as it circles through Epcot. Outside of Epcot, it's just normal transportation going through the woods and is kind of boring. Look, another pine tree! A road!
Clustering the resort closer together would have made the Monorail and the Peoplemover much more applicable.
For those who say that they didn't built a transit system: They did, just like every other city: buses. They, unfortunately, make a lot more sense. They can stack them up where needed or take them offline easily. They don't have to run all of the buses all day long - just what they need. The monorail is counter to that in that once they have the lines loaded, it's more of an ordeal to unload them / switch things up.
Regarding selling off the rest of the land: I disagree with this because they have their special deal with Florida (their own district) and in having that, to me at least, it would have made much more sense to open more of it up earlier as an industrial park. Lure companies in with: You can pretty much build what you want with a LOT less hassle.