Alexander made a set of dolls for the Minnesota Twins last year, and attendance skyrocketed for the last-place team. All of a sudden, people were camping out overnight to collect the dolls. Other teams took notice. The Philadelphia 76ers gave out an Allen Iverson doll this season and it nearly caused a riot. Bobblehead dolls are a common item on eBay and other online auction sites.
Most collectors prefer dolls in mint condition, which means the ones with unbobbled heads.
The Tigers put a Higginson doll up for auction on Major League Baseball's Web site, just for kicks. I'm not the one doing it. Plenty of others are, making the after-market quite profitable. Yes, it is a sweet after-market. But the before-market isn't bad either, especially for Alexander, who has nearly cornered it.