Default Price dropping and Resell value

So what started off as a 500$ unlocked (16gb) to 400$ and now to 300$ all in 5 months. [August Release Date]

What sort of resell value are we looking at before the Moto X2 comes out around august?? Im only curious because I would like to purchase this moto x unlocked phone now for 300 and sell around July/August.

At this rate, its looking like ~100$-125$? What do you guys think?