I think this is the sellers technique, unless im missing something http://www.ebay.com/itm/Unc-1963-D-...84?pt=Coins_US_Individual&hash=item4accfe49b8
Why? because the 12 feedback bidder has gone up in small increments? Best to check the sellers previous sales and look at the bids on them, if the 12 feedback bidder is bidding on those too you may be right, but I have checked and cannot see it.
I just dont see a 56.00 coin there. The bidder has been on ebay for less than a month and has 1800 bids, and the other bidder has 50% bid activity with that seller
I am sure glad I do not have your paranoia. BTW 5**C has been on eBay for more that a month. Had you looked, he has bid on 745 separate items, but there are only 26 listed for the last 30 days.
I have bidders inch up my coins... I think they wanna see what the high bidders max is, so they know whether or not they wanna go more. Also, you may not see a $56 coin there, but some newbie with 12 fb might.