Repair old iPod touch 3rd Gen or ipad mini?

I have ipod touch which needs screen and battery replacement with total around $50. Major usage is for my daughter (junior high school) for game, photo editor and music. Now, I am also thinking to replace it with ipad mini (because of camera and size - able to read and play garageband). I have also ipad2 but I bring it to the office on weekdays, and let the kids use them during weekend.

I kindly need your opinion, do you think, it's still worth to spend $300 for ipad mini instead of $50 for ipod touch repair?

Thanks!

Source: http://forums.macrumors.com/showthread.php?t=1534882&goto=newpost

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