I have to chime in here.
This thread makes it seem like FYE.com's used DVDs is on par with brand new/like new ones or very close. This is simply not the case.
FYE.com used inventory comes from the same warehouse as that of secondspin.com and wherehouse.com.
I have purchased a select handful through each avenue including local brick and mortar FYE stores, and I can say the discs are not exactly pristine. They are used for a reason because they look used. Yes, a certain percentage of their "used" certainly look great to near excellent, but you will frequent many that are truly "used".
It depends on the lighting condition used to examine discs as well. Under direct or indirect sunlight, the disc may seem "near perfect." Examine the same disc under a well lit room, and you may come to find the disc isn't exactly as "near perfect" as you may have initially thought. Examine the same disc under a dim lit room, slowly tilt it in various directions, and you may find some real faint scratches. Examine the same disc under a lamp, and scratches may be prevalent.
PS. After receiving a DVD in scratched condition, I called customer service to see if they would be willing to resurface the disc if I sent it back. Their response was something along the lines of "unfortunately we don't do that" or "we don't resurface the discs." But they did agree to send out another used one if they had it in stock.