I cant say much for the Sukhumvit malls, as i don't visit them, but Mega Bang Na has been packed any time i have went over the past year. Ikea seems to be permanently busy - at least on a weekend. In fact places that used to be quieter before such as Thai Watsadu (beside Mega) is busier than i have ever seen it. Previously was mostly just tradespeople frequented it but when i went last Saturday to pickup some of those fiber cement planks - it was jammed - with mostly families. Even the Mrs. noted it and she hates it there.