Looks to me in general the four lowest are the MK and Epcot resorts (BLT, VGF, BCV, BWV) which make sense, indicating that bus transport is more expensive than boat or monorail. However, VWL is very high, which I can only think is due to (1) small resort that (2) requires much of it's own transport. OKW and SSR are I guess high because they require buses to ALL the parks, yet still have boats to pay for as well. (For DTD.) AKV is surprisingly low for it's location, which I can only think is due to the fact it only requires 2 bus-stops versus the multiple ones at SSR and OKW, and it doesn't have any secondary form of transportation.