>>150084622
The fundamental problem with nonsports cards are that cards are seasonal but the properties are evergreen. You can sell figures or shirts or DVDs or soundtracks forever, but you can really only issue cards so long before people get tired of them. Sports self-renew, there are new rookies and stars each season, but you can only put a picture of Jack Skellington on a piece of cardboard so many times before it gets boring and people move on to the next thing.

You can get more life out of trading card games than non-sports cards, because there's a community aspect to them and you can release original content, but if the game dies, no more content for you.