Most Western countries get a free 30 day visa on arrival that can be extended another 30 days (total 60) for 1900 baht at an immigration office in Thailand. After that 60 days, one must leave the country and then can return and repeat the same process. It seems like you have to do the same thing with the 6 month METV. If this is the case, what is the benefit of the 6 month METV?