Sufficient interest and membership has enabled the creation of many furry conventions in North America and Europe. A furry convention is for the fans get together to buy and sell artwork, participate in workshops, wear costumes, and socialize.[30] Anthrocon, in 2008 the largest furry convention with more than 5,861 attendees,[31] is estimated to have generated approximately $3 million to Pittsburgh's economy that year.[32] Another convention, Further Confusion, held in San Jose each January, closely follows Anthrocon in scale and attendance.