REA Aution guess what goes for the most

[Aquarian Sports Cards]

But the baseball players and boxers drive the popularity of the set in general (and it's gorgeous) so if you want to complete a set you NEED Brown. There are more people who want a set than there are Brown cards. Pretty basic economics.

I look at T220 Silver Border and you'd think "well the two key cards in that set are about as rare as the Brown, so they should go for as much" But even though I personally love the T220 Silvers the amount of people trying to complete sets is probably not even a dozen because it's ONLY boxing.

If there was a similar set with ONLY Race Car Drivers, Track Athlete's and Pool Players with one super rare card it would likely sell for even less than the T220 rarities, because those sports rank even lower than boxing in popularity.

The baseball cards drive the overall demand, but then it spreads to the other cards because of set collecting. If the 4 baseball players weren't in the set you'd have never heard of the Brown card.