I have notice that if you want to go from Giran to Dion which cost 8100a, you can save your money and use 450a only
the trick is to walk out of giran
and walk towards ex ground
when you come out from giran from the west entrance, walk until you see a split path, take the right path until you reach a narrow path with rock walls.
Use a Scroll of Escape there and you will end up in Dion
The whole process takes about 4 mins from the Gatekeeper of Giran to the SoE point.
This saves you lots of money if you use it for a long term