By the way, double pricing entry fee, 40 baht for people born outside of this great nation.
At a smaller ruin nearby with slightly less double pricing differential I asked the two ticket staff why the thai price was written in thai numerals and the foreigner price in roman numerals and yet the opening times written for both thais and was foreigners, 0600 - 1800, were written in roman numerals. They were so impressed with my wisdom that both of them presumed that I was also skilled enough to obtain their reply telepathically whilst they stared at their feet.
So, unless cambodians who want to visit temples built by their khmer ancestors on their own land can read thai numerals, they too will be screwed for a few extra baht.