love my Kindle also... I also have a discontinued Sharper Image Literati that is junk but that I bought to use with library e-books but now Amazon will have that capability on Kindle by year end so kindle gets my vote . Save color for an Ipad or tablet computer type thing. if she just wants to read books, Kindle can't be beat.
I'm sure she will love whatever you get. Oh Amazon also announced that Walmart will be selling Kindles I think beginning sometime this week so you can feel it and test it out.