I think there is more demand for the other sports - internationally. I think UDs hockey coffers are full. Look at the price of the Sidney Crosby Upper Deck rookie card - the base YG card. What 1 base RC football card compares?
I think it helps, however, that those sports play sooooo many games a season that there is a plethora of jerseys available per year. And - awesome colors and logs associated with basketball and hockey. NFL is catching up on the "flair" lately (Seattle maybe?).
I think everyone dumps a ton of crap on football collectors because they've got 20,000 sticker autographs from a single 4th round draft pick and know they have to distribute them. So, number 20 sets to 1000.
I think it helps, however, that those sports play sooooo many games a season that there is a plethora of jerseys available per year. And - awesome colors and logs associated with basketball and hockey. NFL is catching up on the "flair" lately (Seattle maybe?).
I think everyone dumps a ton of crap on football collectors because they've got 20,000 sticker autographs from a single 4th round draft pick and know they have to distribute them. So, number 20 sets to 1000.