Another good thing to BB is the fact that if you both do return back to the LOS later to retire like were gonna do its worth its weight in gold to be able to come back with the missus to see the grandkids as in our case .
Can you imagine all the pissin about trying to get a visitor visa for her ?
They will no doubt both keep their Thai nationallity,s so its good to be dual.

As we will be going for it in September I will let you know of any tips ( if needed ) and as you rightly say it aint gonna be any cheaper