the winning bidder has used 5% of his bids on the sellers' items, while the under bidder has used 19% of his bids. possible shilling, though it seems likely at least that the winning bidder was real. i was involved in a similar auction (i stopped at $66) that ended at about $120, but that one seemed like more blatant shilling.
Not really, can't just say "That's shilling" when you see a high price on something that's out of the norm. Lot of low feedback bidders are still learning how ebay works, if they get outbid, they will keep trying till the are winning the auction, so it can be confused with shilling. Have to remember Winter Solder is super hot right now, $66 is far too low to even bother trying to win that, that's only $33 each. The books will cool off once the movie leaves the theater but right now, everyone and thier sister wants those books.