The only reason cards went towards adults was because of the money-to-spend factor, but it is still a wonderful hobby. And the biggest thing is to remember that most adults that collect were once kids. I remember back when you got a single card and a stick of gum for a penny. We would religiously keep track of our purchases on checklists. Cards were released monthly, a new checklist, over the summer. We would actively trade. (A side note, my dad, during the thirties, told stories of the local store that would open all packs and for your pennies you could choose a card that you wanted out of those available and a stick of gum). We learned math. Those stats on the back. We would play dice games. Eventually, you could but a whole set at a time and "real" board games were introduced for cards. I still remember my first autograph, and then attending the 60s welcome home banquets for my hometown Twins. The players got a kick out of seeing their cards. Another side note: Twin players used to park in the lot surrounding Metropolitan Stadium and small group of kids wee always on hand looking for that autographed card or ball. Sadly, what something is worth, condition, and all these other factors have made cards a big business. But as long as here is baseball and kids, there will be cards. Check out: Minnesota Twins Baseball Cards, Autographs, Publications, Memorabilia, Players, Stats, History, Collectibles to see the labors of lover of a few now adults!