Since we are talking about eBay vs. auction houses, this PWCC auction for a 1913 Shoeless Joe National Game card is, um, interesting. The current high bidder has 77 total bids in the last 30 days, and all 77 of those bids have been with PWCC.
http://www.ebay.com/itm/350703421457...=p5197.c0.m619