What's going on with these two auctions?

It was very curious to me why these two auctions on 1972 PR69DCAM Kennedy have such different auction prices with just eleven days apart. Forgot to snipe the second one...oops!
auction 1
auction 2
Normally I like to start auction really low, but these days it's such a gamble! Ok, to me the first coin looks slightly better, but is it worth twice as much as the second one?
auction 1
auction 2
Normally I like to start auction really low, but these days it's such a gamble! Ok, to me the first coin looks slightly better, but is it worth twice as much as the second one?

Kennedy Halves, Early Silver Commemorative, Modern proof gold eagles, proof sets, Modern Commemorative, Chinese coins, Australia Sovereign and Modern, British Sovereign, and Euros.
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Comments
Russ, NCNE
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Once competition starts the price can go anywhere, because it's no longer about the coin it is about winning.
Glen
Auction #1 started @ $118.99 "forcing" 3 bidders to pay a higher price.
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Plus think #1 just had interested bidder who really wanted coin.