Trading cards are making a comeback - and not just for kids. Big-box retailers are stocking up on everything from Pokémon to NFL stars to Taylor Swift cards, expecting them to be one of this year’s hottest gift categories, according to CNBC. Target told CNBC that new releases will drop nearly every week through the holidays, with sales already up 70% this year and revenue on track to top $1 billion. Across the industry, strategic card sales - like Pokémon and collectible games - are up over 100-percent ...