Go popular, kinokuniya, mph.
Selling $60++ book a piece.
Only cheap bookstore is xcessbook.

You're not wrong, but it's not their fault. I learned to love books because my dad used to bring me to book fairs and the public library.
Kids these days are not exposed or given enough chance to bury themselves into books because the public libraries are often lacking. Even at schools, libraries are only open during recess time. If more bookstores are accessible to more kids B40 and M40 kids, we might be able to cultivate the reading culture.

From my own experiences, trying to buy books for my kids is challenging.
2 of my kids love reading Malay and English novels, but its too expensive for them me to buy. At most, I can only afford to get 1 book AFTER they've finished reading the last book I bought them. Every time we go to a mall, we'd always enter a bookstore and browse around for offer bins or discounted books because everything else is too bloody expensive. Either that, or I simply get them second hand books from books and bobs or buy them off Shopee.