My DD has been using the NUK learner cup since about 6 months and has used it exclusively since about 9 months. Needless to say, I need to replace the nipples at least thanks to her chewing on them a bit. I am curious if we should just replace the nipples on these or should we be looking at more"big girl" cups? Our pedi just said to use what she likes, but I am afraid we'll spend money on them and then be told to go to a hard spout or more of a cup in a few months. What do you ladies think? TIA!