One area where that really manifests itself is in a much more subtle area than card sets, or numbering of super shiny refractors. One thing I have noticed is how much the photography changes when you get to hockey or football cards.
Sure some of that has to do with the manufacturers (and competition *gasp*) in other sports. But theres something else. Baseball is about repetition. How well can a pitcher or batter repeat their delivery or swing? Most ground balls or fly balls are going to look pretty much the same. In short, there are only so many ways the game will "look" aside from the exceptional event.
But the other sports? Well, when you have somebody actively trying to stop you from doing what you are doing (catching, tackling, passing, etc) it means the body will do some interesting things.
All these pickups came from a flea market trip a few weeks back. At a dime a piece, I was able to score some nice cards that were well above and beyond you standard dime box fare. Which of course was a welcome invitation to snag anything and everything that caught my eye.
Of course one of the other things that differentiates football is the celebrations. While I don't disagree with the No Fun League title, it's hard to deny that most celebrations in football are more involved than most baseball ones. Of course anything more than a fist pump after a homer will probably get you getting acquainted with a 94mph fastball your next time up. In football, the celebrations come all to often, even on those most routine of plays.
But of course it's never allllll about photos. Hell, perhaps the best part of 90's cards was all the other stuff going on with the card. Is Kordell Stewart standing in the middle of some kind of metal plant explosion?