I think that the biggest thing is more that they use the "1/1" term for the auction search manipulation more than thinking they might get more out of it. I would say that a numbered-to-jersey cards carry a premium and might be a little bit closer to a "1/1", but for first, last, underwear-size, etc. to be listed as a "1/1" is ridiculous.
Collect Michael Jordan, Stockton/Malone/Hornacek/Eaton, Kresimir Cosic, Int'l oddballs
I specialize in hard to find oddities for player/team collectors
eBay Geonut (100+ auctions)
Int'l/player INVENTORY: http://www.hobbydisplay.com/geonut/
I specialize in hard to find oddities for player/team collectors
eBay Geonut (100+ auctions)
Int'l/player INVENTORY: http://www.hobbydisplay.com/geonut/