I'd recommend waiting for manufacturers to release their respective "mining edition" video cards, which have no display ports.
This could drop prices on regular "gaming" videocards, becausenow the demand is high and supply is low, due to current mining boom.)
The cards in your price range aren't really affected by this directly, because they are not likely used for mining, but they can also be affected indirectly.
 If i want to upgrade to 1060 or 1070, which are now at least at 150% of their price as of April 2017, i get shocked and buy 1050 instead, which indirectly raises its price too.