The bidding history shows a series of proxy bids, which is why there are jumps
Starting Price US $499.00 Oct-13-08 18:45:00 PDT
US $500.00 Oct-14-08 01:32:46 PDT
US $511.00 Oct-14-08 06:02:00 PDT
US $521.00 Oct-14-08 20:39:31 PDT
US $660.00 Oct-15-08 02:37:57 PDT
These two bids are probably the same person
US $601.00 non-winning Oct-15-08 13:51:43 PDT
US $1,211.00 Oct-15-08 13:52:06 PDT
the $1211 is a proxy bid, probably showing as winning at $670, maybe $685 - one increment above the previous proxy bid of $660
Three more that are probably one bidder
US $810.99 non-winning Oct-15-08 20:33:10 PDT
US $909.12 non-winning Oct-15-08 20:33:35 PDT
US $1,212.12 Oct-15-08 20:34:41 PDT
This was shown as the winning bid, because it was less than one bid increment above the proxy bid of $1211
US $1,625.35 Oct-17-08 16:46:29 PDT
Again, 2 by a single bidder
US $1,501.00 Oct-17-08 18:06:17 PDT non-winning
US $1,701.00 Oct-17-08 18:06:27 PDT new proxy
US $1,676.00 Oct-19-08 01:42:36 PDT non-winning
US $1,801.00 Oct-19-08 06:26:59 PDT new high bid
US $1,760.00 Oct-19-08 11:49:08 PDT - non winning
US $1,850.00 Oct-19-08 11:49:32 PDT (same bidder, now winning)
US $1,900.00 Oct-19-08 17:01:35 PDT (bid increment must have been $25, setting winning bid at $1875, which allowed someone else to bid $1900 too)
US $1,900.00 Oct-19-08 23:32:32 PDT (previous bid of same amount was winning bid - if this person had bid 1901, it would be winning)
US $3,100.00 Oct-20-08 13:51:49 PDT (proxy bid)
US $7,990.00 Oct-20-08 14:11:16 PDT (another proxy bid)
The next several bids didn't beat the proxy, but drove the winning bid up
US $4,100.00 Oct-20-08 14:20:52 PDT
US $5,000.00 Oct-20-08 14:21:23 PDT (probably same bidder)
US $5,500.00 Oct-20-08 17:05:01 PDT
US $6,000.00 Oct-20-08 18:00:41 PDT
US $6,200.00 Oct-20-08 18:07:33 PDT (probably same bidder)
These last 3 bids were probably made by the same person
US $7,500.00 Oct-20-08 18:24:30 PDT not winning,
US $7,900.00 Oct-20-08 18:25:55 PDT showed winning bid as 7990, less than a full bid increment above this bid, indicating the next bid would become the winning bid.
US $8,090.00 Oct-20-08 18:27:19 PDT
If any snipe bids were set, they were lower than the 8090 bid and were not accepted as bids. As such, they don't show in the bidding history.
If eBay would show the bid history in the order bids were placed, as I have reconstructed, it becomes easier to see the bidding patterns. Because they use proxy bidding, the history as shown on their site doesn't make much sense - If I place a bid for $8000 the first day of the auction, 40 other bids may be accepted before someone else comes close. If the next highest bid is $2000, I will win for far less than my original bid, that's just how the system works. If you bid that $2000, and still are not winning, you might decide to bid $2100 in hopes that my bid was $2001 - you'll notice some bidders use odd amounts for that reason. It can produces clues about what the winning bidder used as a proxy.