Nowhere else that I have been to has a choice like Pattaya.
The first time I went to Cambodia was about 18 years ago & when I walked into a gay bar in Siem Reap, there were about 10 cute boys watching me. However, that was before so many of them moved to Pattaya. On recent visits, it took a lot more effort to find boys in Cambodia.
Perhaps that might improve now a few have gone home.
Also, it may be the same in Laos. An M Bar boy has recently been posting about sitting in an empty gay bar in Vientiane. Well it's a chicken and egg situation. So many Lao boys have gone to Pattaya that it takes longer to find a boy in Vientiane these days. So the tourists are more likely to go to Pattaya.
And on a previous topic, after you had a boy move in during your holiday, how difficult is it to move him out at the end of your holiday ?