That's the only thing about ebay I don't like. Winning or losing in the last 10 seconds is a crapshoot.
Snipe it at a little over the ABSOLUTE MOST that you are willing to pay, in the last 5 seconds of the auction, either you get it for a price that you are willing to pay, or it sells for more than you were willing to pay, it's really simple.
All that bidding before the last 10 seconds does is gives other bidders a chance to out bid you.
The only reason for the 7 day auction lengths is to give as many bidders a fair chance to find the listing as possible. Find the the item that you are interested in, put it on a watch list and wait until the closing moments of the auction to bid, anything else is foolish, with the exception of a listing that has a very low opening bid, with NO BIDS on it yet, put in a small bid, and you Might get lucky, I have, and by putting in the FIRST bid you MAY deter some budget bidders that look for low opening bids, some will bypass an auction that already has "Competition".
I personally LOVE the Finite auction END Time on ebay, the ones that stay "Open" for like another 10 minutes after a bid, are annoying, Place your best bid, and be Done with it.
With ebay, the selling price is set by the SECOND HIGHEST Bid, Plus the next incremental increase, so even if you bid $500 the last 10 seconds, if the Next Highest bid is only $300, you will get it for $300, PLUS the next bidding increment, which I Believe is $5 at that price point, so even though you bid $500, you only PAY $305.. IMO, that is the BEST way to do things, everyone has a Fair chance, and the auction closes at a scheduled time, granted "Live" auctions would lose a lot of Drama, but ebay's way is Superior in my opinion
Those that complain that they "Lost By ONLY $XX, don't Really UNDERSTAND how ebay works, in the $300/$500 dollar, $305 Win situation, they didn't really "Lose by $5" they lost by $205 and just didn't know it, $300 was all that they "Thought" they wanted to pay, then cry, I "Would have Paid another $5". That is why you bid just a bit past what you "Think" your Max Bid is, Bid High Enough, that If/When you get out bid, it Really IS more than you were willing to pay.
Doug