They jumped the prices after covid started, offering a promotion of anadditional 6 months @ 500,000 baht starting price. Then afterwards it was raised to 600,000 baht and reverted back to the normal five year visa term.
If I had to pay this I'd go live in another Asian country because forginers are not respected by the government or rich Thai people, only by the every day Thai. We have saved Thailand from hell by our huge ongoing financial conrubution to the Thai economy. We are NOT respected properly. Backward thinking still prevails.