Ok, no need to be nasty because it shows your maturity. <snip>
The only difference is that at a proper auction (and I've seen it many times), a person who may have put a max bid in (or the figure they had in their head) suddenly goes up.
I was tired and irritated by your accusation. Sorry.
Anyhow, the difference is the concept of "bidding wars" and having a chance to increase your max bid.
In a real auction, if you get outbid, you have all the time you need* to respond and place a new bid. You may even decide that your "max" bid that you had in your head when you started bidding, can be exceeded.
*You are physically present at the auction so you only need a few seconds. With an online auction, you would conceivably need a few minutes/hours/days to account for that fact that many people don't watch the auction in real time.
eBay ends at a fixed, set time. People do not have the opportunity to respond to bids that occur in the final seconds. If they did have time, they might decide that their "max" bid can be exceeded.
This is the crux of the argument. If you bid with enough time for other interested people to respond to your bid, you are giving them time to make further bids, *beyond* what they had first considered their "max".
This is how bidding wars happen. This is how people end up paying way more than they had planned to.
If, as you must do, you will concede that some people +do+ end up paying more than they had intended**, then you must also concede that bidding before the end of the auction can increase the final price value of the lot.
**It would be madness to claim that nobody on eBay has ever walked away from an "auction" having paid more than they intended.