GoPro really needs you to buy its action cameras, and it's trying an uncommon take on a familiar strategy to make that happen. The company has introduced a TradeUp program in the US that gives you a discount of $50 on a Hero 6 Black or $100 on a Fusion if you trade in your old digital camera... no matter who made it. So long as the camera was worth at least $99.99 when new, you'll get that same discount. You'll clearly get more value out of this by trading in a point-and-shoot or early GoPro instead of a DSLR, but it's a good way to get rid of a device that would otherwise gather dust in the closet.
Source: GoPro