So everyone already seen the radioshack ads with getting a 100$ for your Evo/Shift and the 3D will then be a 100$ with the upgrade. After thinking, Sprint does the buy-back program at their stores, and will most likely give me more then 100$ for my Shift, so does that mean that its a better deal to go to the Sprint store with my upgrade (July 1st) and trade in the Shift and get the 3D which will make it even less then 100$ or what? Slightly confused on it.