Originally Posted by Mongolmike
I would doubt they return them. Why would Wilson even want them? I would guess (curious to know) that TW has a certain number of sticks they have exclusively for demo, and after a while they sell them as used sticks? If they did return them, there might be a close inspection, then they are probably offered to employees or destroyed.
You may be right that TW might sell them as used racquets albeit I have not seen the black-out racquets for sale.