Also a Yank, and I think most things, in UK are a tad more expensive than USA, AND ... I find most things are about the same or more expensive in TH, for everyday living. Many thing much more expensive here in TH.
Anything involving labor is much cheaper in TH, along with tax base; mainly RE, being fairly non existent. Of course healthcare is far cheaper in TH for Yanks, and you'll find it much more accessible than UK I believe, though not free as the UK.