SQ: i think if YE dun like book maybe u dun have to buy so many for now.. but i feel when it comes to reading, we have to nuture. Maybe u buy the books and read to her and instead of giving it to her to play,explore herself. Sorry for jumping to assumption here that u let YE play/explore the books herself cos u say YE not interested in the books and i dun really understand what u mean by this.
Maybe you can read the books with her and do the activities together and and dun forget to be more animated and include hand actions etc when u read the stories, they like it. (esp with out high pitch voices)
As for toys, IMHO - i think by now, we should all know our babies' likes and dislikes, so if they like musical stuff, can invest and buy more musical toys for them. If their attention span is short and they are not interested to play with activity tables i think can save the $ and not get it (cos these activity tables can be quite costly). But if they are like teng, anthea who likes to fiddle with little catch, knobs etc, def can get lah.