Verizon has launched a national trade-in event where-in it's offering up to $300 to those trading-in their old phone and purchasing a new Samsung Galaxy S7, LG G5, Motorola Droid Turbo 2, or iPhone 6S (16GB) on a device payment plan.To be precise, a maximum trade-in amount of $312 is on offer, and eligible handsets includethe Droid Turbo, Galaxy Note5, Galaxy S6, Galaxy S6 edge/edge+, HTC M9,