If Disney announced tomorrow that they're building Radiator Springs Racers, Flo's V8 Cafe, Tow Mater's Junkyard Jamboree, a couple of gift shops and the Monster's Inc Coaster, I would expect a portion of the fan community to complain. In that case, it would be the exact segment of the insatiable fan community that Jim Hill is referencing. It doesn't necessarily make that group wrong (depending on their complaints), but there is certainly a large percentage of us that feel that cloning Carsland isn't our first choice. If the Monster's Inc Coaster is included as an original attraction, I actually expect some people to view that as something that's simply been on the table for a while and therefore not as exciting. Again, this isn't exactly fair but it points to the insatiable expectations that seem to be out there.
I'm not sure what the answer is, but as much as I dislike the idea of cloning Carsland I know that it's probably the safest bet.