Apple Store exchange: a bunch of brand new unopened iPads for a mac pro

won a bunch of iPads this summer, every other hackathon i crash. some opened, most are unopened.

i'm like a bad pirate with a desktop dragon's lair full of piled up loot.. so, yes, it's been a while, much past their 14-day period...

but is it possible to somehow exchange these for store-credit off an even larger purchase (e.g., a decked out mac pro)?