[Xrystal]

Hmm well I can see that this is glaring at me

MidgetMap:SetScript("OnEvent", function(self, arg1)
	if arg1~=MidgetMap then return end
	Minimap:SetResizable(true)
	MidgetMapDB = Minimap.scale
	Minimap:SetScale(MidgetMapDB.scale)
end)

By setting MidgetMapDB to Minimap.scale you are overwriting the stored scale value.

MidgetMap:SetScript("OnEvent", function(self, arg1)
	if arg1~=MidgetMap then return end
	Minimap:SetResizable(true)
	Minimap:SetScale(MidgetMapDB.scale)
end)

That should work fine right there.

Also, at the top of the lua somewhere it might be a good idea to set a default value for the MidgetMapDB scale so that it will use that if nothing has been written to the saved variables file yet.

MidgetMapDB = {}
MidgetMapDB.scale = 0.9

This will create a default saved variables table that will then get replaced by the saved one once it is loaded. if one doesn't exist it will use these values.

Edit: And what Seerah said .. rofl