Posted By:
davidcyclebackMy opinion is that a pin isn't a card, but that no one ever said a card collector can't also collect pins.
I tend to be restrictive in my hobby definitions (I'm no fan of convenient definitions, in particular ones convenient to the definer), but that doesn't mean my definitions drive what I think people should collect. Whether or not the Wagner thingamajig is a card, I consider it a worthy item to collect. I think one person can consider it a card, another not, and both want to buy one for their collections.
Perhaps we should introduce the term quasi-baseball card, meaning something isn't literally or technically a baseball card but for all practical purposes works as one. For example, a 1964 Topps baseball stamp isn't literally or physically a card, but is baseball card-like in about all other aspects aspects, including being almost exclusively collected by baseball card collectors.
If your wife kicked you out to the couch seven nights straight, you slept on a quasi-bed.
I wouldn't call a S74 Silk or Topps Coin a baseball card, but might agree to call them quasi-baseball cards.