The indistinguishables category being so large tells me that there is no real difference at this price and anything that is different from the pack is likely an engineered distortion of some kind, and not transparent.
Folks simply don't want to believe this. This is a commodity technology now folks. Dirt cheap at the base level, and quite old as tech goes.
Edited by jbarrentine - 12/30/13 at 4:30pm