"Not-so-funny" daughter

My daughter is now 10 years old and will be turning eleven on month of June. She loves to read now and more interested about news around the world and asks questions like, "it is really the end of the world this december?" (2012). She can retain information both significant and insignificant. She's growing up and maturing but not just yet. She wanted an ipad2 for her birthday but my husband said that she's not old enough and not that responsible enough with her time schedules, so we told her to wait another year or so. So she asked if she can have it on her 12th birthday. We said yes, in one condition... if she can keep all her grades to all "A." She agreed and felt excited until a thought pop into her head. Here's the conversation:

Daughter: Oh no!
My husband and I: What?
Daughter: The end of the world is in December this year... So I won't be having my ipad2.

OMD! (O Mon Dieu!) Instead of worrying that it will be the end of the world, she worried about not getting an ipad. Oh girls!