I kinda thought they might. But, they don't seem to. Now this may be because they are rotating between the Tag and the Leapsters. I bought 6 books (2 for each kid) and they each got 2 Leapster games for Christmas. So we have 6 Tag books and 6 leapster games.

This seems to be plenty of variety to keep them interested. They have been playing them for a solid year and I have never seen them get bored. They do share the 6 between the 3 of them. If they only had the 2 that they got for Christmas they may have gotten bored by now.
The Tag book are not only the story, but there are games you can play in each book.

Kim