.se really doesn't make much sense for Macau, I know that in trying to sell MacauCasino.cn a lot of the value comes from the TLD making sense, thus being a viable option for endusers and actual casinos. I don't really see many folks other than individual buyers, such as corporations, wanting a .se, so I'd say low XXX because almost all TLD's have been taken for "Macau".
Of course with a strong content based page you could increase its value to $X,XXX or beyond