It's unclear whether this is an official price cut or AIBs or retail stores trying to clear inventory due to last month's arrival of the GeForce GTX 1660 Ti, as well as the upcoming launch of the GeForce GTX 1660 on March 15th.
Either way, the GTX 1060 got a lot cheaper in recent months. CowCotLand says their charts indicate the card fell 35 percent in price since October.