Its a valid point that there'll definteily be some intangible economic cost. The question is how much and do bear in mind that the plan is not to just build a casino. The plan is to have a entertainment hub with Casino or vice versa.
Questions I will ask myself is; do you think Singapore will have the means to counter those negative influence from a casino like crime, loanshark, pros, etc. Do you have faith in the NEW leaders to lead Singapore to the NEW Century?
If your answers are no, imho, think of migration but bear in mind, does the country you migrating to aleady have a casino or such?
Just my 2cts.
JC