And out of state residents are a very small percentage of the overall... Rate is double for non-residents on Black and Red, so $120 and $92 respectively on weekends, about $10 less on weekdays.
As for the bunkers, as best I can tell they are able to afford the maintenance by pretty much not maintaining them -- they are rarely ever raked. Don't get me wrong, I am not being critical of Craig and crew, to the contrary, I compliment them every time I am close to one of them....but on a day-to-day basis the bunkers are basically not raked. Given the sheer number/size of bunkers in aggregate on the 5 courses it's somewhat understandable -- and the patrons sure don't hold up their end of the deal on raking bunkers.