I have looked into them, yep a few grand usually but depends on your teeth. Definitely not NHS but definitely are one of the things she spent her cash on.Two and a half grand or similar I believe? My collegue at work had them
Like someone else pointed out earlier there’s being poor, and having plenty of money which you have spent on silly things. Jack is in the latter camp but is somehow fooling some unobservant people to believe she is in the former.