It turns into 5 years x 10,800THB a month for the right to breath Thai air. Accommodation and all else is on you, atop of that price. They do reporting for you, if it is a big deal.
I knew of several Japanese who used their savings to acquire the biggest one, 20 years. Somehow, they all settled in Chiang Mai (probably, the cooler climate and good airline connections). They play golf 2-3 times a week, not sure, could be that golf clubs membership is included or disounted for them.