As with many things, there can be fun in uniqueness... I think a lot of e-book users feel that way now, and it's a lot like the way you feel when you get the hot new cellphone, for example. But eventually, that RAZR becomes just "your phone," and uniqueness is replaced by utility... now it's fun because it works so well for you.
E-books are like that: At some point, they will cease to be "unique." But if they work well thanks to standardization, a wide range of reading choices, and the many advantages of digital data, they will still be fun.