Is it possible than an end user might pay 100k for it? Sure. Likely, not really.
It's a great domain, sure. But you could be waiting a LOOOOOOOOOONG time if you are holding out for high xx,xxx. I'd probably take 20k for it, but equally I'd accept a little less for the sake of a quick sale.
It's a domain that really only has one use - a website about Thailand. As such, your potential buyer base is quite small.